Portable Rechargeable Hearing Aid Sound Amplifier Magnetic Charging Elderly Ear Hearing Aid for the Deaf Hearing Impaired Tyre Inflator 9：Shaving head *1

9：Shaving head *1

- Limit comb x5

black shell gold circle

which are practical and reliable

Portable Rechargeable Hearing Aid Sound Amplifier Magnetic Charging Elderly Ear Hearing Aid for the Deaf Hearing Impaired Tyre Inflator 9：Shaving head *1Tips for buyers: 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. At present, small hearing aids and high power hearing aids on the market are difficult to avoid whistling, and only fully functional digital hearing aids can avoid whistling. Ways to avoid