Turning Your Unison
™
Hearing Aids
On and Off
Your hearing aids have a three-position battery door
that acts as an off/on switch and that allows access to
the battery compartment.
To turn the hearing aid on, close the battery door fully.
Note: If the start up mute is activated, your hearing aids
will not turn on until the program button is pushed.
To turn the hearing aid off, partially open the battery
door. This position allows excess moisture to vent away
from the battery compartment. Note: If you have a high
power BTE with a 675 battery, you also have an on/off
switch in the volume control.
To replace the hearing aid battery, fully open the battery
door for access to the battery compartment.
5
on
off
open
Note: When turning your
hearing aid on and off, grasp
the top and bottom of the aid
with your index finger and
thumb. Use your thumb to open
and close the battery door.