Adjusting The Volume; Muting The Microphone - Samsung GH68-12074A User Manual

IMPORTANT

Adjusting the volume

Press [ on the side of the headset to increase the volume
]
level and [ ] to decrease the volume level.
At very high volumes, prolonged listening to the
headset can damage your hearing.

Muting the microphone

Press and hold [ ] or [ ] to switch off the headset's
microphone. To switch it back on, press and hold either one
again.
14
Do not hold the Multi-Function button down
too long when making a call with your voice,
ending, or answering a call. This should only
be a quick tap.