Behringer Sd251-bt User manual

Quick Start Guide

V 1.0

!Important Safety Information

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus

near water.

6. Clean only with dry cloth.

7. Do not throw this product in the

re, to avoid explosion.

8. Do not expose this product to

bright sunshine for a long time.

9. Do not disassemble or modify

this product.

10. Please store this product in a

clean and dry environment.

11. Charge it once a month

(minimum).

12. Do not leave unattended

while charging.

13. WARNING! Choking and

Swallowing Hazard. Keep the

product safely out of reach of

children and pets. The small

size presents a choking and

swallowing hazard. Failure to

follow instructions may lead to

permanent damage or death.

14. WARNING! To prevent possible

hearing damage, do not listen

at high volume levels for long

periods.

Accessories List

• SD251-BT earphones x 1 pair

• Zipper case

• Silicone sleeves in 3 sizes

• USB charging cable

• Cleaning tool

• This quick start guide

Features

• Professional studio-grade

monitoring earphones

• Dynamic micro-driver provides

wide frequency response (20

Hz - 20 kHz) delivering full bass

and detailed highs

• Bluetooth* 5.0 technology for

exceptional sound quality with

up to 33 ft (10 m) of wireless

freedom

• Built-in CVC 8.0 isolates the

user's voice from surrounding

clutter for clear phone

conversation

• Sound-isolating design blocks

outside noise for detailed

musical experience

• Secure, over-the-ear cable

design ensures in-ear stability

and comfort

• 360-degree rotating

gold-plated MMCX lock-snap

connector for exibility and

versatile connectivity options

• Bluetooth communication

cable for seamless phone calls

and eortless music controls

• Up to 7-hours of battery life -

USB charging cable included

• Zipper case included to enjoy

your music on-the-go

• Includes foam and silicone

ear-plugs in 3 sizes to ensure

a perfect t

Controls

Battery pod

USB charging port

Charging/Bluetooth LED

and microphone

Control buttons

Getting Started

Charging

• Before use, please read this

quick start guide carefully and

keep it in a safe place.

• Please fully charge the earbuds

before use.

• Do not leave unattended

while charging.

• Please regularly charge the

earbuds if you do not use them

for a long time (more than

3 months).

• Please use the supplied charger

cable only.

• There is built-in easy voice

prompt for low battery that

informs the user to recharge

the device.

WARNING: Avoid the following

• Replacement of a battery that

can defeat a safeguard.

• Disposal of a battery into re

or a hot oven, or mechanically

crushing or cutting of a battery,

that can result in an explosion.

• Leaving a battery in an

extremely high temperature

surrounding environment

that can result in an explosion

or the leakage of ammable

liquid or gas.

• A battery subjected to

extremely low air pressure

that may result in an explosion

or the

• leakage of ammable liquid

or gas.

SD251-BT

Studio Monitoring Earphones with

Bluetooth* Connectivity

LEGAL DISCLAIMER

Music Tribe accepts no liability for any loss which may be suered by any person

who relies either wholly or in part upon any description, photograph, or statement

contained herein. Technical specications, appearances and other information

are subject to change without notice. All trademarks are the property of their

respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound,

TC Electronic, TC Helicon, Behringer, Bugera, Oberheim, Auratone and Coolaudio

are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music

LIMITED WARRANTY

For the applicable warranty terms and conditions and additional information

regarding Music Tribe’s Limited Warranty, please see complete details online at

musictribe.com/warranty.

Quick Start Guide

V 1.0

!Important Safety Information

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus

near water.

6. Clean only with dry cloth.

7. Do not throw this product in the

re, to avoid explosion.

8. Do not expose this product to

bright sunshine for a long time.

9. Do not disassemble or modify

this product.

10. Please store this product in a

clean and dry environment.

11. Charge it once a month

(minimum).

12. Do not leave unattended

while charging.

13. WARNING! Choking and

Swallowing Hazard. Keep the

product safely out of reach of

children and pets. The small

size presents a choking and

swallowing hazard. Failure to

follow instructions may lead to

permanent damage or death.

14. WARNING! To prevent possible

hearing damage, do not listen

at high volume levels for long

periods.

Accessories List

• SD251-BT earphones x 1 pair

• Zipper case

• Silicone sleeves in 3 sizes

• USB charging cable

• Cleaning tool

• This quick start guide

Features

• Professional studio-grade

monitoring earphones

• Dynamic micro-driver provides

wide frequency response (20

Hz - 20 kHz) delivering full bass

and detailed highs

• Bluetooth* 5.0 technology for

exceptional sound quality with

up to 33 ft (10 m) of wireless

freedom

• Built-in CVC 8.0 isolates the

user's voice from surrounding

clutter for clear phone

conversation

• Sound-isolating design blocks

outside noise for detailed

musical experience

• Secure, over-the-ear cable

design ensures in-ear stability

and comfort

• 360-degree rotating

gold-plated MMCX lock-snap

connector for exibility and

versatile connectivity options

• Bluetooth communication

cable for seamless phone calls

and eortless music controls

• Up to 7-hours of battery life -

USB charging cable included

• Zipper case included to enjoy

your music on-the-go

• Includes foam and silicone

ear-plugs in 3 sizes to ensure

a perfect t

Controls

Battery pod

USB charging port

Charging/Bluetooth LED

and microphone

Control buttons

Getting Started

Charging

• Before use, please read this

quick start guide carefully and

keep it in a safe place.

• Please fully charge the earbuds

before use.

• Do not leave unattended

while charging.

• Please regularly charge the

earbuds if you do not use them

for a long time (more than

3 months).

• Please use the supplied charger

cable only.

• There is built-in easy voice

prompt for low battery that

informs the user to recharge

the device.

WARNING: Avoid the following

• Replacement of a battery that

can defeat a safeguard.

• Disposal of a battery into re

or a hot oven, or mechanically

crushing or cutting of a battery,

that can result in an explosion.

• Leaving a battery in an

extremely high temperature

surrounding environment

that can result in an explosion

or the leakage of ammable

liquid or gas.

• A battery subjected to

extremely low air pressure

that may result in an explosion

or the

• leakage of ammable liquid

or gas.

SD251-BT

Studio Monitoring Earphones with

Bluetooth* Connectivity

LEGAL DISCLAIMER

Music Tribe accepts no liability for any loss which may be suered by any person

who relies either wholly or in part upon any description, photograph, or statement

contained herein. Technical specications, appearances and other information

are subject to change without notice. All trademarks are the property of their

respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound,

TC Electronic, TC Helicon, Behringer, Bugera, Oberheim, Auratone and Coolaudio

are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music

LIMITED WARRANTY

For the applicable warranty terms and conditions and additional information

regarding Music Tribe’s Limited Warranty, please see complete details online at

musictribe.com/warranty.

Quick Start Guide

V 1.0

!Important Safety Information

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus

near water.

6. Clean only with dry cloth.

7. Do not throw this product in the

re, to avoid explosion.

8. Do not expose this product to

bright sunshine for a long time.

9. Do not disassemble or modify

this product.

10. Please store this product in a

clean and dry environment.

11. Charge it once a month

(minimum).

12. Do not leave unattended

while charging.

13. WARNING! Choking and

Swallowing Hazard. Keep the

product safely out of reach of

children and pets. The small

size presents a choking and

swallowing hazard. Failure to

follow instructions may lead to

permanent damage or death.

14. WARNING! To prevent possible

hearing damage, do not listen

at high volume levels for long

periods.

Accessories List

• SD251-BT earphones x 1 pair

• Zipper case

• Silicone sleeves in 3 sizes

• USB charging cable

• Cleaning tool

• This quick start guide

Features

• Professional studio-grade

monitoring earphones

• Dynamic micro-driver provides

wide frequency response (20

Hz - 20 kHz) delivering full bass

and detailed highs

• Bluetooth* 5.0 technology for

exceptional sound quality with

up to 33 ft (10 m) of wireless

freedom

• Built-in CVC 8.0 isolates the

user's voice from surrounding

clutter for clear phone

conversation

• Sound-isolating design blocks

outside noise for detailed

musical experience

• Secure, over-the-ear cable

design ensures in-ear stability

and comfort

• 360-degree rotating

gold-plated MMCX lock-snap

connector for exibility and

versatile connectivity options

• Bluetooth communication

cable for seamless phone calls

and eortless music controls

• Up to 7-hours of battery life -

USB charging cable included

• Zipper case included to enjoy

your music on-the-go

• Includes foam and silicone

ear-plugs in 3 sizes to ensure

a perfect t

Controls

Battery pod

USB charging port

Charging/Bluetooth LED

and microphone

Control buttons

Getting Started

Charging

• Before use, please read this

quick start guide carefully and

keep it in a safe place.

• Please fully charge the earbuds

before use.

• Do not leave unattended

while charging.

• Please regularly charge the

earbuds if you do not use them

for a long time (more than

3 months).

• Please use the supplied charger

cable only.

• There is built-in easy voice

prompt for low battery that

informs the user to recharge

the device.

WARNING: Avoid the following

• Replacement of a battery that

can defeat a safeguard.

• Disposal of a battery into re

or a hot oven, or mechanically

crushing or cutting of a battery,

that can result in an explosion.

• Leaving a battery in an

extremely high temperature

surrounding environment

that can result in an explosion

or the leakage of ammable

liquid or gas.

• A battery subjected to

extremely low air pressure

that may result in an explosion

or the

• leakage of ammable liquid

or gas.

SD251-BT

Studio Monitoring Earphones with

Bluetooth* Connectivity

LEGAL DISCLAIMER

Music Tribe accepts no liability for any loss which may be suered by any person

who relies either wholly or in part upon any description, photograph, or statement

contained herein. Technical specications, appearances and other information

are subject to change without notice. All trademarks are the property of their

respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound,

TC Electronic, TC Helicon, Behringer, Bugera, Oberheim, Auratone and Coolaudio

are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music

LIMITED WARRANTY

For the applicable warranty terms and conditions and additional information

regarding Music Tribe’s Limited Warranty, please see complete details online at

musictribe.com/warranty.

Quick Start Guide

V 1.0

!Important Safety Information

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus

near water.

6. Clean only with dry cloth.

7. Do not throw this product in the

re, to avoid explosion.

8. Do not expose this product to

bright sunshine for a long time.

9. Do not disassemble or modify

this product.

10. Please store this product in a

clean and dry environment.

11. Charge it once a month

(minimum).

12. Do not leave unattended

while charging.

13. WARNING! Choking and

Swallowing Hazard. Keep the

product safely out of reach of

children and pets. The small

size presents a choking and

swallowing hazard. Failure to

follow instructions may lead to

permanent damage or death.

14. WARNING! To prevent possible

hearing damage, do not listen

at high volume levels for long

periods.

Accessories List

• SD251-BT earphones x 1 pair

• Zipper case

• Silicone sleeves in 3 sizes

• USB charging cable

• Cleaning tool

• This quick start guide

Features

• Professional studio-grade

monitoring earphones

• Dynamic micro-driver provides

wide frequency response (20

Hz - 20 kHz) delivering full bass

and detailed highs

• Bluetooth* 5.0 technology for

exceptional sound quality with

up to 33 ft (10 m) of wireless

freedom

• Built-in CVC 8.0 isolates the

user's voice from surrounding

clutter for clear phone

conversation

• Sound-isolating design blocks

outside noise for detailed

musical experience

• Secure, over-the-ear cable

design ensures in-ear stability

and comfort

• 360-degree rotating

gold-plated MMCX lock-snap

connector for exibility and

versatile connectivity options

• Bluetooth communication

cable for seamless phone calls

and eortless music controls

• Up to 7-hours of battery life -

USB charging cable included

• Zipper case included to enjoy

your music on-the-go

• Includes foam and silicone

ear-plugs in 3 sizes to ensure

a perfect t

Controls

Battery pod

USB charging port

Charging/Bluetooth LED

and microphone

Control buttons

Getting Started

Charging

• Before use, please read this

quick start guide carefully and

keep it in a safe place.

• Please fully charge the earbuds

before use.

• Do not leave unattended

while charging.

• Please regularly charge the

earbuds if you do not use them

for a long time (more than

3 months).

• Please use the supplied charger

cable only.

• There is built-in easy voice

prompt for low battery that

informs the user to recharge

the device.

WARNING: Avoid the following

• Replacement of a battery that

can defeat a safeguard.

• Disposal of a battery into re

or a hot oven, or mechanically

crushing or cutting of a battery,

that can result in an explosion.

• Leaving a battery in an

extremely high temperature

surrounding environment

that can result in an explosion

or the leakage of ammable

liquid or gas.

• A battery subjected to

extremely low air pressure

that may result in an explosion

or the

• leakage of ammable liquid

or gas.

SD251-BT

Studio Monitoring Earphones with

Bluetooth* Connectivity

LEGAL DISCLAIMER

Music Tribe accepts no liability for any loss which may be suered by any person

who relies either wholly or in part upon any description, photograph, or statement

contained herein. Technical specications, appearances and other information

are subject to change without notice. All trademarks are the property of their

respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound,

TC Electronic, TC Helicon, Behringer, Bugera, Oberheim, Auratone and Coolaudio

are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music

LIMITED WARRANTY

For the applicable warranty terms and conditions and additional information

regarding Music Tribe’s Limited Warranty, please see complete details online at

musictribe.com/warranty.

Quick Start Guide

V 1.0

!Important Safety Information

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus

near water.

6. Clean only with dry cloth.

7. Do not throw this product in the

re, to avoid explosion.

8. Do not expose this product to

bright sunshine for a long time.

9. Do not disassemble or modify

this product.

10. Please store this product in a

clean and dry environment.

11. Charge it once a month

(minimum).

12. Do not leave unattended

while charging.

13. WARNING! Choking and

Swallowing Hazard. Keep the

product safely out of reach of

children and pets. The small

size presents a choking and

swallowing hazard. Failure to

follow instructions may lead to

permanent damage or death.

14. WARNING! To prevent possible

hearing damage, do not listen

at high volume levels for long

periods.

Accessories List

• SD251-BT earphones x 1 pair

• Zipper case

• Silicone sleeves in 3 sizes

• USB charging cable

• Cleaning tool

• This quick start guide

Features

• Professional studio-grade

monitoring earphones

• Dynamic micro-driver provides

wide frequency response (20

Hz - 20 kHz) delivering full bass

and detailed highs

• Bluetooth* 5.0 technology for

exceptional sound quality with

up to 33 ft (10 m) of wireless

freedom

• Built-in CVC 8.0 isolates the

user's voice from surrounding

clutter for clear phone

conversation

• Sound-isolating design blocks

outside noise for detailed

musical experience

• Secure, over-the-ear cable

design ensures in-ear stability

and comfort

• 360-degree rotating

gold-plated MMCX lock-snap

connector for exibility and

versatile connectivity options

• Bluetooth communication

cable for seamless phone calls

and eortless music controls

• Up to 7-hours of battery life -

USB charging cable included

• Zipper case included to enjoy

your music on-the-go

• Includes foam and silicone

ear-plugs in 3 sizes to ensure

a perfect t

Controls

Battery pod

USB charging port

Charging/Bluetooth LED

and microphone

Control buttons

Getting Started

Charging

• Before use, please read this

quick start guide carefully and

keep it in a safe place.

• Please fully charge the earbuds

before use.

• Do not leave unattended

while charging.

• Please regularly charge the

earbuds if you do not use them

for a long time (more than

3 months).

• Please use the supplied charger

cable only.

• There is built-in easy voice

prompt for low battery that

informs the user to recharge

the device.

WARNING: Avoid the following

• Replacement of a battery that

can defeat a safeguard.

• Disposal of a battery into re

or a hot oven, or mechanically

crushing or cutting of a battery,

that can result in an explosion.

• Leaving a battery in an

extremely high temperature

surrounding environment

that can result in an explosion

or the leakage of ammable

liquid or gas.

• A battery subjected to

extremely low air pressure

that may result in an explosion

or the

• leakage of ammable liquid

or gas.

SD251-BT

Studio Monitoring Earphones with

Bluetooth* Connectivity

LEGAL DISCLAIMER

Music Tribe accepts no liability for any loss which may be suered by any person

who relies either wholly or in part upon any description, photograph, or statement

contained herein. Technical specications, appearances and other information

are subject to change without notice. All trademarks are the property of their

respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound,

TC Electronic, TC Helicon, Behringer, Bugera, Oberheim, Auratone and Coolaudio

are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music

LIMITED WARRANTY

For the applicable warranty terms and conditions and additional information

regarding Music Tribe’s Limited Warranty, please see complete details online at

musictribe.com/warranty.

Wearing, inserting and removing the earphones

1. These earphones should be worn with the cables routed over the ear.

Then, the cables can be run to your monitoring system either in front or

behind , similar to this illustration:

2. Insert each earphone so makes a tight seal in the ear canal. A good seal with

the ear canal is necessary for optimum sound quality, especially for bass

frequencies.

3. If you notice a loss of bass frequencies, gently push the earphone deeper

into the ear canal to produce a better seal. If this adjustment does not

improve the bass response, you can also switch to a dierent sleeve.

WARNING: Avoid pushing the earphone in beyond the ear canal.

4. To remove the earphones, rmly hold each earphone’s outer case between

your nger and thumb and twist gently.

Choosing, installing and changing sleeves

SD Series earphones come with a selection of soft sleeves in three sizes,

from small to large

WARNING: Always make sure to protect your ears by muting or lowering your

monitoring system’s volume down all the way before inserting the earphones.

1. Choose an earphone sleeve with the best t and the best seal to isolate your

earphone mix from outside sounds.

2. Slide the sleeve onto each earphone’s sound nozzle. Apply light pressure,

and if necessary rotate the sleeve as you go until secure.

3. Make sure the sleeve completely covers the nozzle and the ared barb.

4. Try inserting the earphone into your ear canal to test the t.

5. If the t is too loose or tight, twist and pull to remove the sleeve from the

nozzle and replace with a sleeve in the next appropriate size.

NOTE: If the barb or nozzle is exposed beneath the sleeve, the sleeve is not

installed properly. Sleeves that do not t securely over the nozzle and barb

should be replaced.

Bluetooth pairing

You will hear voice prompt for pairing after power on. Please refer to function

map table for other functions.

Bluetooth functions for Bluetooth-enabled earphones can be accessed from the

controller pod embedded in the earphone cable:

Power ON / OFF

Power On Press center key for 3 seconds

Power O Press center key for 3 seconds

Music Controls

Play the Track Press center key once

Pause the Track Press center key once

Volume Up by 7% Press "+" key

Volume Down by 7% Press "-" key

Next Track Long Press "+" key

Previous Track Long Press "-" key

Mic Control

Mic mute / unmute Long press center key

Voice Assist Control

Activate Voice Assist Press center key three times

LED Indication

Mode LED color/activity

Charging Red

Fully charged Red light will turn o

Pairing mode Red and Blue lights ashing alternately

Bluetooth connected Blue

Cleaning

1. If you notice problems with sound quality not related to the t inside

the ear canal, remove the sleeve and check the earphone nozzle for

obstructions.

2. If the nozzle is blocked, use the included cleaning tool to clear the block.

3. Replace the sleeve onto the nozzle, and re-insert the earphones into

your ear to test the sound.

Maintenance tips

• Keep the earphones and sleeves clean and dry.

• To clean, remove the sleeves from the earphone nozzle, gently rinse

in warm water and allow to air dry. Sleeves should be completely

dry before

• Inspect sleeves for damage and replace as necessary.

• Avoid exposing the sleeves to extreme temperatures.

• Replace sleeves that do not t properly.

Nozzle

Cleaning

Tool

Wearing, inserting and removing the earphones

1. These earphones should be worn with the cables routed over the ear.

Then, the cables can be run to your monitoring system either in front or

behind , similar to this illustration:

2. Insert each earphone so makes a tight seal in the ear canal. A good seal with

the ear canal is necessary for optimum sound quality, especially for bass

frequencies.

3. If you notice a loss of bass frequencies, gently push the earphone deeper

into the ear canal to produce a better seal. If this adjustment does not

improve the bass response, you can also switch to a dierent sleeve.

WARNING: Avoid pushing the earphone in beyond the ear canal.

4. To remove the earphones, rmly hold each earphone’s outer case between

your nger and thumb and twist gently.

Choosing, installing and changing sleeves

SD Series earphones come with a selection of soft sleeves in three sizes,

from small to large

WARNING: Always make sure to protect your ears by muting or lowering your

monitoring system’s volume down all the way before inserting the earphones.

1. Choose an earphone sleeve with the best t and the best seal to isolate your

earphone mix from outside sounds.

2. Slide the sleeve onto each earphone’s sound nozzle. Apply light pressure,

and if necessary rotate the sleeve as you go until secure.

3. Make sure the sleeve completely covers the nozzle and the ared barb.

4. Try inserting the earphone into your ear canal to test the t.

5. If the t is too loose or tight, twist and pull to remove the sleeve from the

nozzle and replace with a sleeve in the next appropriate size.

NOTE: If the barb or nozzle is exposed beneath the sleeve, the sleeve is not

installed properly. Sleeves that do not t securely over the nozzle and barb

should be replaced.

Bluetooth pairing

You will hear voice prompt for pairing after power on. Please refer to function

map table for other functions.

Bluetooth functions for Bluetooth-enabled earphones can be accessed from the

controller pod embedded in the earphone cable:

Power ON / OFF

Power On Press center key for 3 seconds

Power O Press center key for 3 seconds

Music Controls

Play the Track Press center key once

Pause the Track Press center key once

Volume Up by 7% Press "+" key

Volume Down by 7% Press "-" key

Next Track Long Press "+" key

Previous Track Long Press "-" key

Mic Control

Mic mute / unmute Long press center key

Voice Assist Control

Activate Voice Assist Press center key three times

LED Indication

Mode LED color/activity

Charging Red

Fully charged Red light will turn o

Pairing mode Red and Blue lights ashing alternately

Bluetooth connected Blue

Cleaning

1. If you notice problems with sound quality not related to the t inside

the ear canal, remove the sleeve and check the earphone nozzle for

obstructions.

2. If the nozzle is blocked, use the included cleaning tool to clear the block.

3. Replace the sleeve onto the nozzle, and re-insert the earphones into

your ear to test the sound.

Maintenance tips

• Keep the earphones and sleeves clean and dry.

• To clean, remove the sleeves from the earphone nozzle, gently rinse

in warm water and allow to air dry. Sleeves should be completely

dry before

• Inspect sleeves for damage and replace as necessary.

• Avoid exposing the sleeves to extreme temperatures.

• Replace sleeves that do not t properly.

Nozzle

Cleaning

Tool

Wearing, inserting and removing the earphones

1. These earphones should be worn with the cables routed over the ear.

Then, the cables can be run to your monitoring system either in front or

behind , similar to this illustration:

2. Insert each earphone so makes a tight seal in the ear canal. A good seal with

the ear canal is necessary for optimum sound quality, especially for bass

frequencies.

3. If you notice a loss of bass frequencies, gently push the earphone deeper

into the ear canal to produce a better seal. If this adjustment does not

improve the bass response, you can also switch to a dierent sleeve.

WARNING: Avoid pushing the earphone in beyond the ear canal.

4. To remove the earphones, rmly hold each earphone’s outer case between

your nger and thumb and twist gently.

Choosing, installing and changing sleeves

SD Series earphones come with a selection of soft sleeves in three sizes,

from small to large

WARNING: Always make sure to protect your ears by muting or lowering your

monitoring system’s volume down all the way before inserting the earphones.

1. Choose an earphone sleeve with the best t and the best seal to isolate your

earphone mix from outside sounds.

2. Slide the sleeve onto each earphone’s sound nozzle. Apply light pressure,

and if necessary rotate the sleeve as you go until secure.

3. Make sure the sleeve completely covers the nozzle and the ared barb.

4. Try inserting the earphone into your ear canal to test the t.

5. If the t is too loose or tight, twist and pull to remove the sleeve from the

nozzle and replace with a sleeve in the next appropriate size.

NOTE: If the barb or nozzle is exposed beneath the sleeve, the sleeve is not

installed properly. Sleeves that do not t securely over the nozzle and barb

should be replaced.

Bluetooth pairing

You will hear voice prompt for pairing after power on. Please refer to function

map table for other functions.

Bluetooth functions for Bluetooth-enabled earphones can be accessed from the

controller pod embedded in the earphone cable:

Power ON / OFF

Power On Press center key for 3 seconds

Power O Press center key for 3 seconds

Music Controls

Play the Track Press center key once

Pause the Track Press center key once

Volume Up by 7% Press "+" key

Volume Down by 7% Press "-" key

Next Track Long Press "+" key

Previous Track Long Press "-" key

Mic Control

Mic mute / unmute Long press center key

Voice Assist Control

Activate Voice Assist Press center key three times

LED Indication

Mode LED color/activity

Charging Red

Fully charged Red light will turn o

Pairing mode Red and Blue lights ashing alternately

Bluetooth connected Blue

Cleaning

1. If you notice problems with sound quality not related to the t inside

the ear canal, remove the sleeve and check the earphone nozzle for

obstructions.

2. If the nozzle is blocked, use the included cleaning tool to clear the block.

3. Replace the sleeve onto the nozzle, and re-insert the earphones into

your ear to test the sound.

Maintenance tips

• Keep the earphones and sleeves clean and dry.

• To clean, remove the sleeves from the earphone nozzle, gently rinse

in warm water and allow to air dry. Sleeves should be completely

dry before

• Inspect sleeves for damage and replace as necessary.

• Avoid exposing the sleeves to extreme temperatures.

• Replace sleeves that do not t properly.

Nozzle

Cleaning

Tool

Wearing, inserting and removing the earphones

1. These earphones should be worn with the cables routed over the ear.

Then, the cables can be run to your monitoring system either in front or

behind , similar to this illustration:

2. Insert each earphone so makes a tight seal in the ear canal. A good seal with

the ear canal is necessary for optimum sound quality, especially for bass

frequencies.

3. If you notice a loss of bass frequencies, gently push the earphone deeper

into the ear canal to produce a better seal. If this adjustment does not

improve the bass response, you can also switch to a dierent sleeve.

WARNING: Avoid pushing the earphone in beyond the ear canal.

4. To remove the earphones, rmly hold each earphone’s outer case between

your nger and thumb and twist gently.

Choosing, installing and changing sleeves

SD Series earphones come with a selection of soft sleeves in three sizes,

from small to large

WARNING: Always make sure to protect your ears by muting or lowering your

monitoring system’s volume down all the way before inserting the earphones.

1. Choose an earphone sleeve with the best t and the best seal to isolate your

earphone mix from outside sounds.

2. Slide the sleeve onto each earphone’s sound nozzle. Apply light pressure,

and if necessary rotate the sleeve as you go until secure.

3. Make sure the sleeve completely covers the nozzle and the ared barb.

4. Try inserting the earphone into your ear canal to test the t.

5. If the t is too loose or tight, twist and pull to remove the sleeve from the

nozzle and replace with a sleeve in the next appropriate size.

NOTE: If the barb or nozzle is exposed beneath the sleeve, the sleeve is not

installed properly. Sleeves that do not t securely over the nozzle and barb

should be replaced.

Bluetooth pairing

You will hear voice prompt for pairing after power on. Please refer to function

map table for other functions.

Bluetooth functions for Bluetooth-enabled earphones can be accessed from the

controller pod embedded in the earphone cable:

Power ON / OFF

Power On Press center key for 3 seconds

Power O Press center key for 3 seconds

Music Controls

Play the Track Press center key once

Pause the Track Press center key once

Volume Up by 7% Press "+" key

Volume Down by 7% Press "-" key

Next Track Long Press "+" key

Previous Track Long Press "-" key

Mic Control

Mic mute / unmute Long press center key

Voice Assist Control

Activate Voice Assist Press center key three times

LED Indication

Mode LED color/activity

Charging Red

Fully charged Red light will turn o

Pairing mode Red and Blue lights ashing alternately

Bluetooth connected Blue

Cleaning

1. If you notice problems with sound quality not related to the t inside

the ear canal, remove the sleeve and check the earphone nozzle for

obstructions.

2. If the nozzle is blocked, use the included cleaning tool to clear the block.

3. Replace the sleeve onto the nozzle, and re-insert the earphones into

your ear to test the sound.

Maintenance tips

• Keep the earphones and sleeves clean and dry.

• To clean, remove the sleeves from the earphone nozzle, gently rinse

in warm water and allow to air dry. Sleeves should be completely

dry before

• Inspect sleeves for damage and replace as necessary.

• Avoid exposing the sleeves to extreme temperatures.

• Replace sleeves that do not t properly.

Nozzle

Cleaning

Tool

Wearing, inserting and removing the earphones

1. These earphones should be worn with the cables routed over the ear.

Then, the cables can be run to your monitoring system either in front or

behind , similar to this illustration:

2. Insert each earphone so makes a tight seal in the ear canal. A good seal with

the ear canal is necessary for optimum sound quality, especially for bass

frequencies.

3. If you notice a loss of bass frequencies, gently push the earphone deeper

into the ear canal to produce a better seal. If this adjustment does not

improve the bass response, you can also switch to a dierent sleeve.

WARNING: Avoid pushing the earphone in beyond the ear canal.

4. To remove the earphones, rmly hold each earphone’s outer case between

your nger and thumb and twist gently.

Choosing, installing and changing sleeves

SD Series earphones come with a selection of soft sleeves in three sizes,

from small to large

WARNING: Always make sure to protect your ears by muting or lowering your

monitoring system’s volume down all the way before inserting the earphones.

1. Choose an earphone sleeve with the best t and the best seal to isolate your

earphone mix from outside sounds.

2. Slide the sleeve onto each earphone’s sound nozzle. Apply light pressure,

and if necessary rotate the sleeve as you go until secure.

3. Make sure the sleeve completely covers the nozzle and the ared barb.

4. Try inserting the earphone into your ear canal to test the t.

5. If the t is too loose or tight, twist and pull to remove the sleeve from the

nozzle and replace with a sleeve in the next appropriate size.

NOTE: If the barb or nozzle is exposed beneath the sleeve, the sleeve is not

installed properly. Sleeves that do not t securely over the nozzle and barb

should be replaced.

Bluetooth pairing

You will hear voice prompt for pairing after power on. Please refer to function

map table for other functions.

Bluetooth functions for Bluetooth-enabled earphones can be accessed from the

controller pod embedded in the earphone cable:

Power ON / OFF

Power On Press center key for 3 seconds

Power O Press center key for 3 seconds

Music Controls

Play the Track Press center key once

Pause the Track Press center key once

Volume Up by 7% Press "+" key

Volume Down by 7% Press "-" key

Next Track Long Press "+" key

Previous Track Long Press "-" key

Mic Control

Mic mute / unmute Long press center key

Voice Assist Control

Activate Voice Assist Press center key three times

LED Indication

Mode LED color/activity

Charging Red

Fully charged Red light will turn o

Pairing mode Red and Blue lights ashing alternately

Bluetooth connected Blue

Cleaning

1. If you notice problems with sound quality not related to the t inside

the ear canal, remove the sleeve and check the earphone nozzle for

obstructions.

2. If the nozzle is blocked, use the included cleaning tool to clear the block.

3. Replace the sleeve onto the nozzle, and re-insert the earphones into

your ear to test the sound.

Maintenance tips

• Keep the earphones and sleeves clean and dry.

• To clean, remove the sleeves from the earphone nozzle, gently rinse

in warm water and allow to air dry. Sleeves should be completely

dry before

• Inspect sleeves for damage and replace as necessary.

• Avoid exposing the sleeves to extreme temperatures.

• Replace sleeves that do not t properly.

Nozzle

Cleaning

Tool

FEDERAL COMMUNICATIONS COMMISSION

COMPLIANCE INFORMATION

Responsible Party Name: Music Tribe Commercial NV Inc.

Address: 5270 Procyon Street,

Las Vegas NV 89118, United States

Phone Number: +1 702 800 8290

SD251-BT

This equipment has been tested and found to comply with the limits for a

Class B digital device, pursuant to part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference in

a residential installation. This equipment generates, uses and can radiate

radio frequency energy and, if not installed and used in accordance with

the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment o and

on, the user is encouraged to try to correct the interference by one or more of

the following measures:

SD251-BT

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit dierent from that to

which the receiver is connected

• Consult the dealer or an experienced radio/TV technician for help.

This device complies with Part 15 of the FCC rules. Operation is subject to the

following two conditions:

(1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference

that may cause undesired operation.n.

Important information:

Changes or modications to the equipment not expressly approved by Music

Tribe can void the user’s authority to use the equipment.

Specications

Driver 6.8 mm

Impedance 22 Ω

Frequency responsew 20 Hz to 20 kHz

Sound pressure level (SPL) 93 dB @1kHz (105 dB peak)

Rated power 3 mW

Bluetooth* Version 5.0

Frequency range 2402 MHz ~ 2480 MHz

Channel number 79

Max output power 5 dBm

Bluetooth range Up to 10 m (33 ft) in line of sight

CODEC support aptX, AAC, SBC

Call support CVC 8.0

Mic sensitivity -42 dB (±3 dB) @ 1 kHz, 0 dB = 1 V/Pa

Battery type Rechargeable lithium battery

Working time Up to 7 hrs

Standby time Up to 150 hrs

Charging time 1 hr via USB 5 V / 500 mA

Cable Shielded, detachable

Connector MMCX connector, detachable

Cable length 25 cm (10")

*The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc.,

and any use of such marks by Music Tribe is under license.

Other important information

you purchase it by visiting behringer.com. Registering your purchase using

our simple online form helps us to process your repair claims more quickly and

eciently. Also, read the terms and conditions of our warranty, if applicable.

Malfunction. Should your Music Tribe Authorized Reseller not be located

in your vicinity, you may contact the Music Tribe Authorized Fulller for your

country listed under “Support” at behringer.com. Should your country not be

listed, please check if your problem can be dealt with by our “Online Support”

which may also be found under “Support” at behringer.com. Alternatively,

please submit an online warranty claim at behringer.com BEFORE returning

the product.