On/Off & Volume Control
Turns the beltpack power on and controls head set volume.
Wireless Talk Around (WTA)
When pressed, the user's audio is disconnected from the wired intercom, auxiliary input/output and the base station's local headset. Other beltpack users, on that audio channel, can hear the user as normal.
Stage Announce (SA)
When pressed, the user's audio is routed to the stage announce connector on the back of the base station. The user also loses their sidetone as an indication that stage