Siemens Orion M User Manual page 11

Rocker switch
Function
Program up/down
Volume up/down
Tinnitus noiser level
up/down
Sound balance
Standby/turn on
press briefly,
press 5 seconds
Push button and rocker switch
Function
Lock / Unlock the controls
Read more in section "Locking the controls".
Left
press 2 seconds,
Left
Your hearing instruments
Right
Right
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