Behringer SD251-BT - Studio Monitoring Earphones With Bluetooth Connectivity Manual

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 flexibility and versatile connectivity options
• Bluetooth communication cable for seamless phone calls and effortless 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 fit

Controls

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.

Avoid the following

• Replacement of a battery that can defeat a safeguard.
• Disposal of a battery into fire 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 flammable liquid or gas.
• A battery subjected to extremely low air pressure that may result in an explosion or the leakage of flammable liquid or gas.

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 different sleeve.
   
   Avoid pushing the earphone in beyond the ear canal.
4. To remove the earphones, firmly hold each earphone's outer case between your finger 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

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 fit 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 flared barb.
   
4. Try inserting the earphone into your ear canal to test the fit.
5. If the fit 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 fit 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:

Cleaning

1. If you notice problems with sound quality not related to the fit 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 fit properly.

Specifications

*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.