4
5
1.
Parts of the hearing aid
1
Wire
- connects the speaker unit to your
hearing aids
2
Microphones
- sound enters your hearing aids
through the microphones
3
Multi-function button
- switches between
listening programs, changes the volume level,
and accepts or rejects mobile phone calls
depending on your customized fitting
4
Battery door (on & off)
- close the door to turn on
your hearing aids, partly open the door to turn off
your hearing aids. Opening the door all the way
gives you access to change the battery
5
Dome
- holds the speaker unit in place in your ear
canal
6
Retention piece
- helps prevent the dome and
speaker unit from moving out of the ear canal
7
Speaker unit
- amplifies the sound and sends it
directly into the ear canal
8
Custom mold
- holds the hearing aids in place
sound FS R312 hearing aids
2
2
3
4
5
1
6
7
8
1
2
2
3
4
Possible earpieces
cShell
SlimTip
Dome