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A:Turn on the machine by pressing the touch panel for 3 seconds, and then let it close to the
charging box, and there is a clear whistling sound, indicating that the hearing aid is normal
4.Who are hearing aids suitable for?
A: The hearing aid is suitable for people with mild or moderate hearing inpairment
(hearing loss range is 26dB HL~70dB HL ),not sutitable for pathological hearing
impairment. For example, people with natural hearing loss when get older suggest to
use this hearing aid. This hearing aid is temporarily not recommended for people with
severe hearing loss.
5.Is this normal for the hearing aid with squeaking sound (howling sound) How to adjust?
A: This is normal for the hearing aid to squeak (howl) when air in. Can adjust with the
following ways:
(1) Adjust hearing aid wearing angle to ensure no air circulation then howling sound
will not be produced.
(2) Replace more suitable earplugs size.
6.If no sound from the hearing aid after using it for a period of time?
A1: Put the hearing aid back in the charging box to charge, may out of power.
A2: Use a cleaning brush or cleaning stick to clean the sound outlet or microphone,
Sound outlet or microphone may block.
7.If hearing aids sound blurry or unclear?
A1: Put the hearing aid back in the charging box to charge, may battery is low.
A2: Increase hearing aid volume, may volume is low.
A3:Replace the hearing aid earplugs or wear the hearing aid tightly, may earplugs loose.
8.Is this hearing aid waterproof?
A: The hearing aid is a high-precision system. Do not let the hearing aid invade any
liquid. Suggest to remove before swimming, washing hair or taking a bath.
9.How long can hearing aid be used for one charge?
A: 2 hours for the hearing aid fully charged in the charging box, and can be used for
more than 24 hours.
10.How long can the charging box be fully charged?
A: 3 hours to charge the charging box once. Fully charged box can charge hearing aid
4-5 times.
11.Can wear only one hearing aid?
A: If both ears with hearing loss and no other contraindications, Recommend to wear