1Pair Mini In-Ear Aids Enhancer Sound Voice Amplifier Hearing Invisible Digital

Category

Hearing Aids

Store

eBay

Brand

branded

Causes of whistling/noise: In order to make a small hearing aid, the internal amplifier and microphone are placed close to each other. The sound is continuously received and expanded, so there is a certain possibility of whistling after power-on.

31.99 GBP