Logitech G735 Guide D'installation page 6

Volume
Adjust volume with the roller on the left ear cup.
This adjusts the headset's total volume,
not the volumes of your sources.
Mute/Unmute Microphone
Press the mute button located below the volume on
the left ear cup. This will mute the microphone.
When muted, the cosmetic RGB will temporarily
flash red.
There will be a mute sound notification.
6 ENGLISH