Siemens Orion 2 User Manual page 7

Rocker switch function
Press <1 second:
Program up/down
Volume up/down
Tinnitus therapy level up/down
Sound mixer (audio input)
Press >3 seconds:
Standby/turn on
Program up/down
Press 5 seconds:
Standby/turn on
L = Left, R = Right
10
L R Push button function
Press <1 second:
Program change
Volume up
Volume down
Tinnitus therapy level up
Tinnitus therapy level down
Sound mixer (audio input)
Press >3 seconds:
Standby/turn on
L = Left, R = Right
Push button and rocker switch function
Lock/Unlock the controls
Read more in section "Locking the controls".
L = Left, R = Right
L R
L R
11