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The indicator light on the headphone flashes red. A voice prompt will alert 

you that the battery level is low. Insert the micro USB adaptor into the 

headphones and connect the USB end to a power source. The LED indica-

tor light on the headphone will remain red throughout the charging process. 

Once the battery is fully charged, the indicator light will remain blue.

Ensure Bluetooth is switched on and activated on the device you wish to 

pair with. 

Long press the power button until the read and blue LED Indicators flash 

alternately. Ensure Bluetooth is activated on the device you wish to pair 

with. Open the Bluetooth devices list on your device and select ‘ONESONIC 

BB-HD1’. Click connect to start pairing.

Search for nearby Bluetooth devices on the device you wish to pair the BB-

HD1 with, and then pair with ‘ONESONIC BB-HD1’. Click connect to start 

pairing procedure. Upon a successful connection, the blue LED Indicator 

will flash slowly.

Charging Procedure

Pairing Procedure

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