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A) Fitting dome (optional)
HD91
B) Shell
HD151
C) Battery door
HD230
D) Microphone
hearing aid
E) Volume control or memory button (only on HD230)
F) Removal string
4
Installing
A size 10 hearing aid battery is used.
the battery
After removing the sticky tab from a new battery, leave the battery
for 1-2 minutes before inserting into the hearing aid.
Insert the battery after the battery door is fully opened. Close the
battery door smoothly after a new battery is installed. Do not close
the battery door with force as it may damage the hearing aid. If you
cannot close the battery door, check whether the battery is installed
correctly. The flat or positive "+" battery side should be facing up
to where the tiny "+" or red/blue mark is on the battery door.
Remove the battery if the hearing aid is not to be used for an
extended period of time.
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