Letsfit D32 User manual

Wireless Earbuds
D32
User Manual
Thank you for purchasing our products. This manual addresses
the safety guidelines, warranty and operating instructions. Please
review this manual thoroughly before operating your device.

●Wireless earbuds × 1 pair (left and right)
●Charging case × 1
●Eartips × 3 pairs (large, medium, small)
●Micro USB cable × 1
●User manual × 1
Package Contents
1
At a Glance
2
- 1 -
Charging Case
Micro USB charging port
LED indicator

LED indicator
MFB button (multi-function button)
Microphone
R
Right Earbud
Left Earbud (Main Earbud)
L
Air hole
Charging contacts
Replaceable eartips
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Earbuds

●Power on: LED indicators stay white for 2 seconds
●Power off: LED indicators stay red for 2 seconds
●Pairing mode (using both earbuds): LED indicator on the left earbud flashes
red and white alternately
●Pairing mode (using only one earbud): LED indicator on the earbud flashes
red and white alternately
●Connected to a Bluetooth device: LED indicators flash white every 8 seconds
●Disconnected: LED indicators flash white twice every 2 seconds
●Low battery: a voice reminder prompts every 3 minutes with LED indicators
flash red twice
●Earbuds are being charged: LED indicators stay red
●Earbuds are fully charged: LED indicators stay white
Earbud LED Indicator Guide
3
Charging Case LED Indicator Guide
4
LED status when the charging box is charging the earbuds
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● 1~10% battery: the left indicator flashes
● 10~30% battery: the left indicator stays on
● 30~70% battery: the left and middle indicators stay
on
● 70~100% battery: 3 indicators stay on
<10%
10%~30%
30%~70%
70%~100%
● 1~30% battery: the left indicator flashes
● 30%~70% battery: the left indicator stays on, and
the middle indicator flashes
● 70%~100% battery: the left and middle indicators
stay on, and the right indicator flashes
● 100% battery: 3 indicators stay on
<30%
30%~70%
>70%
100%
LED status when charging box is being charged:
LED status when charging box is not being charged or charging
the earbuds:
Note:
LED indicators of the charging case show the power of the charging case only
when you open/close the case. Indicators are off in 5 seconds.
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● The left indicator flashes when the left earbud is charged;
● The right indicator flashes when the right earbud is charged;
● LED indicators are off when earbuds are fully charged;

Wearing the Earbuds
5
Insert the earbud into your ear and rotate to fit comfortably.
Ensure the microphone is pointing towards your mouth.
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● Charge the earbuds
When you use the earbuds for the first time, remove the insulating films on the
charging contacts of the earbuds.
Using the Earbuds
6
- 6 -
Remove the insulating films before use.
1) Align the charging contacts on the right earbud with the charging pins on the
right side of the case.

● Charge the charging case
1) Plug the small end of the USB cable into the Micro USB port of the charging
case.
2) Plug the other end into a USB wall charger or computer (DC 5V) that is
powered on.
Notes:
● It takes approx. 1.5 hours to fully recharge the earbuds.
● The earbuds and the charging case charge simultaneously. The charging
case can be used as a standalone charger.
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2) Repeat steps 1 and to charge the left earbud.
3) Close the case when the earbuds LED indicators are solid red.

●When the charging case is out of power and you put the earbuds back into
the case, the earbuds will not turn off automatically. Turn off the earbuds
manually.
●When the charging case is out of power, the earbuds will not turn on
automatically the time you take them out of the case. Turn on the earbuds
manually.
● Power on/off
Power on
● The earbuds are automatically on when you take them out of the charging
case.
● Press and hold the MFB buttons on both earbuds for 3 seconds to turn on.
Note:
When you use the earbuds for the first time, remove the insulating films
on the charging contacts of the earbuds, and power on the earbuds by
pressing and holding the MFB buttons on both earbuds for 3 seconds.
Power off
● The earbuds are automatically off when you put them back into the
charging case.
● Press and hold the MFB buttons for 5 seconds to turn them off (when both
earbuds are paired with your phone, press and hold the MFB button on
either left or right earbud, the other earbud will be off at the same time).
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● Pair
Pair both earbuds (Pair use)
1) Make sure the earbuds and your phone or other Bluetooth devices are
next to each other (within 3 feet, no obstacles between).
2) Turn on the Bluetooth of your phone or other Bluetooth devices.
3) Turn on the earbuds (when they are in shutdown state) and the earbuds
enter pairing mode (LED indicator on the left earbud flashes red and
white alternately).
4) In the list of found Bluetooth devices in your phone or other Bluetooth
devices, choose "D32-L" to pair.
5) Enter "0000" if your phone or Bluetooth device asks you to enter a code
to pair.
D32-L
100%9:41 AM
D32-L
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Notes:
●The earbuds will directly enter pairing mode the first time you turn them
on.
●The earbuds will connect to the last paired Bluetooth device automatically
when they are turned on. Please turn on the Bluetooth of your Bluetooth
device before turning on the earbuds.
●If pairing failed, turn off the earbuds first and then press and hold the
MFB buttons until the indicator on the left earbud flashes red and white
alternately and earbuds enter pairing mode. Choose "D32-L" in your
phone to pair.
●When both earbuds are connected to your phone, if you put the right
earbud back to the charging case, you can use the left earbud alone
without interruption; but if you put the left earbud back to the charging
case, the right earbud is also disconnected to your phone and you have
to pair the right earbud with your phone again to use the right earbud
alone.
●When the earbuds are on but not paired with your phone or other
Bluetooth devices, they will exit the pairing mode and be automatically off
in 5 minutes.
Pair ONE earbud (Mono Use)
You can use both earbuds simultaneously or use either of the two earbuds
alone.
1) Make sure the earbud and your phone or other Bluetooth devices are
next to each other (within 3 feet, no obstacles between).
2) Turn on the Bluetooth of your phone or other Bluetooth devices.
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3) Take the earbud out of the charging case.
4) Turn off the earbud by pressing and holding the MFB button for 5
seconds.
5) Press and hold the MFB button on the earbud until the indicator flashes
red and white alternately and earbud enters pairing mode.
6) In the list of found Bluetooth devices in your phone or other Bluetooth
devices, choose "D32-L" if you use the left earbud or "D32-R" if you use
the right earbud to pair.
Note:
When the left/right earbud is connected to your phone and you take the
other earbud out of the charging case, earbuds will pair with each other
and then link back to your phone automatically (in the condition that you
have paired both earbuds with your phone before) .
● Decrease/Increase volume
Press the MFB button on the left/right earbud twice to decrease/increase the
volume.
Note:
This function is not supported when the left/right earbud is used alone.
● Last/Next song
Press and hold the MFB button on the left/right earbud for 2 seconds to skip to
the last/next song.
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Note:
This function is not supported when the left/right earbud is used alone.
● Play/pause playing songs
Press the MFB button to pause and press the MFB button again to resume
playing songs.
● Answer/hang up/reject calls
●Press the MFB button or operate on your phone to answer an incoming call.
●Press the MFB button or operate on your phone to hang up an ongoing call.
●Press and hold the MFB button for 2 seconds to reject an incoming call.
Q: What should I do if pairing failed?
A: 1). Put the earbuds back to the charging case and make sure that they are
off.
2). Take the earbuds out of the case and they are automatically on.
3). Wait that the indicator on the left earbud flashes red and white
alternately and earbuds enter pairing mode.
4). Choose "D32-L" in your phone to pair.
Trouble Shooting
7
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If the pairing still fails, check the following points:
●Make sure the earbuds and your Bluetooth device are next to each other
or within 3 feet and there are no obstacles between.
●There are no signal interference nearby (check the following part for
signal interference conditions).
●Try to reboot your Bluetooth device.
Q: Earbuds are connected to phone A. What should I do if I want to pair
earbuds with phone B but I am not able to disconnect earbuds from
phone A?
A: 1). Turn off the earbuds by pressing and holding the MFB buttons for 5
seconds.
2). Press and hold the MFB buttons until the indicator on the left earbud
flashes red and white alternately and earbuds enter pairing mode.
3). Choose "D32-L" in phone B to pair.
Q: Why isn’t the sound clear/consistent sometimes?
A: Bluetooth signal is transmitted wirelessly and signals can be affected,
which results in intermittent sound of earbuds, in the following conditions:
● The distance between the earbuds and your Bluetooth device is at the
edge of the Bluetooth pairable distance.
● Transmitted signals encounter obstacles or human body blockage.
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●There are high-power electronic devices nearby.
●There are other Bluetooth devices and are being turned on/off nearby.
To resume stable connection between the earbuds and your Bluetooth
device, try to avoid the above conditions and do the pairing again.
Q: Why doesn’t the charging case charge the earbuds?
A: ●Open/close the charging case to see if the case is battery low (see
instructions in the charging case LED indicator guide part); if yes,
charging the charging case first.
● The charging case will enter dormant state if it is not closed after 5
minutes. In this case, earbuds will not turn off automatically and be
charged when you put them back into the case. To activate the case
and charge earbuds, close the charging case. If it still won’t work,
charge the case for a minute.
To avoid the above situation, please close the charging case after you
take the earbuds out of or put them back into the case.
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Specifications
8
D32
V5.0
33 feet/10 meters (No obstacles between)
A2DP/HFP/HSP/AVRCP
IPX5
1.5 hours (earbuds); 1 hour (charging case)
about 3.5 hours (Varies according to volume
level and audio content)
DC 5V
Li-polymer
60mAh (earbuds); 500mAh (charging case)
Model
Bluetooth Standard
Operating Range
Supporting Protocols
Waterproof Rate
Charging Time
Talk/Playing Time
Charging Voltage
Battery Type
Battery Capacity
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SAFETY AND WARRANTY
Important Safety Instructions
● Use of earbuds will impair your ability to hear other sounds. Use caution
while using your earbuds when you are engaging in any activity that requires
your full attention.
● If you have a pacemaker or other electrical medical devices, you should
consult your physician before using this product.
● This package contains small parts that may be hazardous to children and
should be kept out of reach from children. This product is not a toy – never
allow children to play with this product. Always store the product out of reach
from children. The bags themselves or the many small parts they contain
may cause choking if ingested.
● Never try to dismantle the product yourself, or push objects of any kind into
the products, as this may cause short circuits which could result in a fire or
electric shock.
● None of the components can be replaced or repaired by users. Only
authorized dealers or service centers may open the product. If any parts of
your product require replacement for any reason, including normal wear and
tear or breakage, please contact us.
● Avoid exposing your product to heat and humidity to protect against damage
to the product or injury to you.
● Keep all products, cords, and cables away from operating machinery.
● If the product overheats, if the product has been dropped or damaged, if the
product has a damaged cord or plug, or if the product has been dropped in a
liquid, discontinue use and contact us.
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● Do NOT use in areas where there are explosive hazards.
● Do NOT submerge the earbuds in water. Do NOT expose the earbuds to
moving water (e.g., from a faucet, etc.).
● Do NOT wear the earbuds while showering or bathing, or when participating
in water sports, e.g., swimming, waterskiing, surfing, etc.
● This product contains magnetic material. Consult your physician on whether
this might affect your implantable medical device.
● Leaving the product in hot or cold places, such as in a closed car in the
summer and winter conditions, will reduce the capacity and lifetime of the
earbuds.
● Dispose of the product according to local standards and regulations.
● Remember: Always drive safely, avoid distractions and follow local laws!
Using the earbuds while operating a motor vehicle, motorcycle, watercraft or
bicycle may be dangerous, and is illegal in some jurisdictions, just as use of
the earbuds with both ears covered while driving is not permitted in certain
jurisdictions. Check your local laws. Use caution while using your earbuds
when you are engaging in any activity that requires your full attention. While
engaging in any such activity, removing the earbuds from your ear or turning
off your earbuds will keep you from being distracted, so as to avoid accident
or injury. Do not take notes or read documents while driving.
● When using and charging this product, basic precautions should always be
followed, including the following:
※ Read all the instructions before using the charging case.
※ To reduce the risk of injury, close supervision is necessary when the
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charging case is used near children.
※ Do not expose charging case to water, rain, liquids or snow.
※ Use of a power supply or charger that is not recommended or sold by power
pack manufacturer may result in a risk of fire or injury.
※ Do not use the charging case in excess of its output range.
※ Do not use a charging case that is damaged or modified. Damaged or
modified batteries may exhibit unpredictable behavior resulting in fire,
explosion or risk of injury.
※ Do not disassemble the charging case. Incorrect reassembly may result in
risk of fire or injury.
※ Do not open, crush or expose a charging case to fire or excessive
temperature. Exposure to fire or extreme temperature may cause explosion.
※ Have servicing performed by a qualified repair person using only identical
replacement parts.
WARRANTY
We strive to build our products with the highest attention to detail and
craftsmanship. However, sometimes there are occurrences of defect.
We are happy to offer 1-year hassle-free warranty to all our products as we
continue to make amazing wireless product. Please contact us if you have any
questions about our devices.
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SM-EJ-D32-V2