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Descrição do item do vendedor
Rechargeable Hearing Aid Mini Invisible Digital Sound Amplifier for Deafness Elderly Wireless Aids Mild to Moderate Hearing Loss Audifonos
●If the earmuffs are not completely inserted into the ear canal or the air leakage of the earmuffs will cause electrical noise, please dont worry,this is the smart chip is suppressing howling, just replace the larger earplugs.Turn off or lower the volume before inserting the instrument in your ear.
Securely position the instrument into your ear. Once the hearing aid is properly seated in your ear,the howling will generally stop.
Product Features:
* Mini size--Invisible to wear
* Easy to operate for elderly
*Digital chips, Noise reduction
* Rechargeable--no need to replace battery
* Around 25 Hours to use after fully charged
Product parameters:
Size: 21.7x15x21.9mm
Working voltage: DC 3.7V +5%, -10%
Working current: ≤ 1.4mA
Frequency response: 300-5000 Hz
Equivalent Input Noise: ≤29dB, +3dB
Maximum Saturation Acoustic Output: ≤128dB, +3dB
Question: Why is there a howling, whistling, or sharp sound?
Answer:
Whistling occurs when the hearing aid and the ear canal are not completely matched. Sounds from the receiver are duplicated at the microphone and the sounds form a loop, which may be continuously amplified and result in a whistling noise. Please dont worry,The folloring tips will help reduce the occurrence of feedback whistle:
1.Reduce the volume.Turn off or lower the volume before inserting the instrument in your ear.
2.Securely position the instrument into your ear.
Once the hearing aid is properly seated in your ear,the whistling will generally stop.
3.Clear the ear canal of wax or debris.Check your ear with help.
4.Change the ear piece or tubing.Change a new one or a different size one.Make sure the tubing is not broken or torn.























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