Size 10 battery
(CIC style shown)
What it is and does
Microphone inlet
Sound in
Battery drawer
Contains the
battery and
functions as
on/off switch
Pull-out string
Pull out the
hearing aid
Components may be positioned differently on
your hearing aid.
12
Program Button
(optional)
Mute, change
volume and
program
Vent
Sound outlet
Sound out
Vent