- HANDLING
AND CONTROLS
-
- Always keep
your hearing instruments clean and dry. To preserve battery life
when you're not wearing your instruments, open the battery compartment
doors so the batteries are not in contact with the internal components.
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- If your instruments
have a volume control, use it to turn them on and off and adjust
the level of amplification.
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- To turn your
instruments on, rotate the control forward or clockwise until
a comfortable sound level is reached.
-
- You may want
to adjust the volume as you move between different listening
situations. To increase volume, continue rotating the control
forward. To make sounds softer, rotate the control backward or
counter-clockwise.
-
- To turn your
instruments off, rotate the control backward as far as it will
go.
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- If your instruments
do not have a volume control, they are "on" any time
functioning batteries are properly placed in the compartments,
and the battery doors are closed.
-
- To turn your
instruments "off," simply open the battery compartment
doors so the batteries are no longer in contact with the internal
components.
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- When any hearing
instrument is "on," you may occasionally hear a whistling
noise known as feedback. It's more likely to occur while you're
inserting or removing your instrument.
-
- Feedback is
caused by amplified sounds leaving the ear that are reflected
by your hand back into the instrument's microphone.
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- It should stop
when you move your hand away. If you have trouble with persistent
feedback, see your hearing professional.
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