To adjust the volume
Press the VOL +/– button.
Tips
You cannot adjust the volume when not talking.
Volume for a call and listening to music can be adjusted independently. Even if you change the volume while playing back the music, the volume of a call does not change.
To end a call
Press the 
POWER button on the headset.
After use
1.Disconnect the BLUETOOTH connection using the smartphone or mobile phone.
2.Press and hold the 
POWER button on the headset for about 2 seconds. The indicator (blue) goes off, and the headset turns off.
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