Plantronics RIG 800 Serie Guide D'utilisation page 5

Charge
It takes up to 4.5 hours to fully charge your headphones. The headset LED is red while charging
and turns off when complete.
Adjust volume
1
To increase or decrease the game and chat volume, adjust the top headset dial.
2
To increase or decrease the master volume, adjust the bottom headset dial.
IMPORTANT
balanced. Use the bottom headset dial to increase or decrease the master volume.
04:30:00 = 1 00%
For the PS4 (slim version), set the top headset dial in the middle; game and chat remain
5