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DO NOT use water, harsh chemicals, strong cleaners or other fluids to clean the
hearing instrument.
DO NOT leave your hearing instrument in the direct sun or in areas where the
temperature can rise over 60°C / 140°F for extended periods of time.
ALWAYS handle the hearing instrument with care; it’s important to prevent
hearing instrument from dropping on hard surfaces, such as counter
top, table or floor.
Cleaning care and precautions
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Whistling is common in small amplifier and is known as 'feedback'.
It is caused by amplified sound leaving the ear and receiving back into
the microphone and being re-amplified. The following tips will help reduce the
effect of feedback/whistle noise:
1. Lower the volume.
Keep volume at lower setting before inserting the instrument in your ear.
2. Secure instrument fitted position
Feedback/whistling noise will stop when the instrument is best fitted/sealed
in the ear with the best fitted dome size.
3. Clear the ear canal of wax or debris.
Seek your hearing care provider for excessive wax built-up
4. Replace the dome or tubing.
Change new dome with a better fitted size.
Make sure the tubing is not broken or torn.
Whistling noise helpful tips
Keep the hearing instrument clean and dry. Use only soft cloth to remove any
body oil or moisture from the hearing instrument shell. Use provided cleaning
tools to clean wax built-up. If the instrument is subject to a lot of perspiration, it
is recommended, turned OFF the hearing instrument and put into a dry box at
least once a week. Dry box can be bought online or any local pharmacy.