BOLTUNE BT-BH023 User manual

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net

Active Noise Cancelling
True Wireless Stereo Earbuds
Model: BT-BH023
USER GUIDE
PACKAGE CONTENTS (Fig. 1)
v Boltune ANC True Wireless Stereo Earbuds (BT-BH023)
w 6 x Ear Tips (two are equipped on the earbuds)
x 1 x USB-C Charging Cable
y 1 x User Manual
z 1 x Quick Start Guide
v w x
1
y z
USERGUIDE QUICKSTART GUIDE
PRODUCT DIAGRAM (Fig. 2)
2
①
②
③
⑤
⑥
⑦
⑧
⑨
④
Multifunction Touch Control
LED Indicator
Microphone
Noise-cancelling Microphone
Charging Contacts
USB-C Charging Port
Charging Case
Charging Indicator
Charging Slot
①
②
③
④
⑤
⑥
⑦
⑧
⑨
IMPORTANT SAFETY INSTRUCTIONS
Please read the instructions thoroughly before using this product and retain it
for future reference.
Hearing Safety
• Do not wear earbuds with high volume for a long time to avoid damaging
your hearing.
• Set the earbuds to low volume before you put them on, then increase the
volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls
via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are
driving or doing other activities with potential dangers.
Warning: Please set the volume to proper level to avoid hearing damages.
Caution
• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a
long time.
• Do not clean the product with detergent containing alcohol, ammonia,
benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it
away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which
may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Don’t use the product in thunderstorm to avoid malfunction or electric
shock.
• Always ask a professional technician or authorized personnel for repair.
This product contains lithium battery. Never expose it to excessive heat
such as direct sunlight or fire to avoid explosion.
HOW TO WEAR
Choose the Right Tips (Fig. 3)
Ear tips with different sizes are included in the package, try all sizes and
choose the ones fitting you best.
3
Wear the Earbuds (Fig. 4)
Please wear the earbuds as shown below.
Pictures only for reference.
Bluetooth Caution
• When the device is connected wirelessly to another device, place the two
devices close to each other to achieve their normal functionalities and avoid
possible signal interference.
• When using a wireless connection, make sure there are no obstacles
between the two devices. Obstacles including walls and fences may shorten
the effective range.
USING YOUR EARBUDS
Charging
Charging the Earbuds
1. Put the earbuds into the charging case as per the L (left) and R (right) marks
(Fig. 5).
2. Cover the lid and charging will start automatically (Fig. 6).
4
① ②
Note:
• Please fully charge the earbuds when using them for the first time.
• When battery is low, a “Battery low” voice prompt will be heard (if you are wearing
the earbuds). Please charge it in time or the earbuds will turn off automatically
around 10 minutes later.
• Charge the earbuds at least once every 3 months when not using for a long time.
Charging the Charging Case
1. Connect the charging port with any USB charging adapter or active
computer USB port (Fig. 7).
2. The charging indicators will light up progressively.
Note: Unplug the charging cable (timely) when fully charged.
7
5 6
L R
BT-BH023_V1.1_EN
03-20-2020
NORTH AMERICA
E-mail: [email protected]
Shenzhen NearbyExpress Technology Development Co.,Ltd.
Address: Floor 7, Building E, Galaxy World Phase II, Shenzhen, China
MANUFACTURER
MADE IN CHINA
www.boltune.net

Power On (Fig. 8)
Uncover the lid and they will power on automatically.
Power Off (Fig. 9)
Put the earbuds into the charging case and close the lid, they will turn off
automatically.
Pairing
• You can use one earbud or both earbuds as per your preference. Please
refer to the corresponding pairing instructions.
• Before pairing, please turn off other Bluetooth devices and place the device
to be connected close to the earbuds.
8
9
L R
• When the earbuds are disconnected from your device for more than 10
minutes, they will turn off automatically.
Couple Earbuds Mode
1. Uncover the lid and take out both earbuds. They will connect with each
other automatically. The LED indicator on the left earbud will flash red and
green alternately indicating the earbuds are in pairing mode now.
2. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap
on the name to connect.
Note:
• It is not recommended to wear the two earbuds on different people. If
needed, please keep the 2 earbuds within 3 meters / 9.8 feet in couple
earbuds mode.
Single Earbud Mode
Single Earbud Mode is available only for the left earbud.
1. Take out the left earbud from the charging case, and make sure the other
one is placed in the charging case.
2. It will try to pair with the last paired device first then enter pairing mode
with its LED indicator flashing red and green alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby
devices. Find “Boltune BT-BH023” in the searching results, tap on the name
to connect.
Note:
If you want to change to couple mode, simply take out the right earbud
from the charging case, they will pair with each other automatically.
Clear Pairing List
If you failed to pair your device with the earbuds, please clear the pairing
history as instructed below:
1. Place both earbuds in the charging case.
2. When the LED indicators on both earbuds stay solid red, press and hold the
Touch Control on both earbuds for 10 seconds until the LED indicators flash
red three times.
3. If you have paired your device with the earbuds before, remove "Boltune
BT-BH023" from the Bluetooth device list and pair again.
4. Take them out to re-pair with your Bluetooth® device as instructed in
“Pairing” section.
Note:
If you want to pair the earbuds with another device when you have already
paired them with a device, deactivate the Bluetooth function on the paired
device or remove “Boltune BT-BH023” from its Bluetooth list. Restore the
earbuds to factory settings as instructed above if pairing failed.
OPERATION AND FUNCTIONS
Function
Play / Pause
Operation
Tap the Touch Control on
either of the earbuds twice
Tap the Touch Control on the
right earbud
Tap the Touch Control on the
left earbud
Volume +
Volume -
Voice Prompt
/
Toots when highest setting
is reached
/
Tap the Touch Control on the
right earbud three times
Next Track /
Tap the Touch Control on either of
the earbuds once
Tap the Touch Control on the left
earbud three times
Tap and hold the Touch Control on
either of the earbuds for 2 seconds
Tap the Touch Control on either of
the earbuds twice
Previous Track
Answer Phone
Call
Decline an
Incoming Call
Hang Up
Phone Call
/
/
/
Call rejected
Clear Pairing
List Refer to the “Clear Pairing List” section /
Go into Pairing
Mode
Successfully
paired with
your device
Bluetooth out
of Range /
Failed to pair
with your device
Refer to the “Pairing” section
/
/
Pairing
Connected
Disconnected
Note: Only when you are wearing the earbuds can you hear the voice prompt.
Turn On / Off
ANC Function
Only available in Couple Earbuds Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
Toot
Toot
Turn On / Off
Voice Control
Couple Earbuds Mode:
Tap and hold the Touch Control on the
right earbud for 2 seconds
Single Earbud Mode:
Tap and hold the Touch Control on the
left earbud for 2 seconds
CLEANING AND MAINTENANCE
1. Clean the earbuds and the charging case on a regular basis.
2. Use dry and soft cotton cloth to wipe the unit.
Note: Do not insert anything into the product.
3. Keep away from sharp objects to avoid scratches.
4. Put the unit in a dry and shady place if it is to be idle for a long time.
5. Do not clean the product with detergent or chemicals.
No. Problem Solution
Failed to turn on the
earbuds Earbuds low battery, please charge them
1
Failed to charge the
earbuds
• Place the earbuds into the charging
case properly
• Make sure the charging case is fully charged
2
Can’t charge the
charging case
Make sure the charging cable is intact
and plugged in properly
3
Can’t find
“Boltune BT-BH023”
in the Bluetooth device
list
The earbuds reconnected with previously
paired device automatically:
• Deactivate the Bluetooth function of
previously paired device or clear
“Boltune BT-BH023” from its Bluetooth
device list, and then
search again
4
TROUBLESHOOTING
Failed to pair the
earbuds with your
device
• Turn on the device and activate its
Bluetooth function before pairing
• Bring the earbuds into pairing mode
as instructed in the “Pairing” section
5
6
No sound in one of the
earbuds in couple
earbuds mode
Place both earbuds back to the charging
case then take them out, they will pair
with each other automatically. If pairing
failed, restore them back to the factory
settings as instructed in the “Clear Pairing
List” section
7 Poor sound quality
• Wear the earbuds properly and keep
them close to each other.
• Place the connected device close to the
earbuds or remove the obstacles
between them
• Clear the debris on the earbuds
8Unstable connection
• The effective distance may shorten with
obstacles in the way
• Turn off other Bluetooth devices to
decrease the interference
9Can’t hear the other
party during a phone call Set the volume to higher level
10
The other party can’t hear
your voice during a
phone call
Free the built-in microphone of any
covers
Touch Control of the
earbuds is unresponsive
Place the two earbuds into the charging
case and cover the lid, disconnect the
Bluetooth connection. Uncover the lid to
turn on the earbuds and pair again.
WARRANTY AND SERVICE
If any problems occur, please contact the Boltune Customer Care Centre in
your country via the contact information listed in this User Guide.
11
www.boltune.net
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