oticon ALFA Instructions For Use Manual page 6

ImporTanT noTIce
Open the battery door fully to allow air to circulate whenever you are not using your
hearing instrument, particularly overnight.
View of size 13 battery instruments (ITc, HS, FS)
openings with O-Cap
Ventilation
opening
Push-button Push-button
(optional) (optional)
1 or 2 microphone Sound outlet with
ProWax wax
microphone filter protection system
Volume control wheel Ventilation
(optional) opening
7c