2023 best Mini Ear Hearing Aids Apparatus In Ear Invisible Hearing Aid Assistant Adjustable Sound Amplifier For Deaf Elderly

2023 best Mini Ear Hearing Aids Apparatus In Ear Invisible Hearing Aid Assistant Adjustable Sound Amplifier For Deaf Elderly

$53.55

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Description


Price: 53.55

Features:
1.Max sound out put:125+/- 3dB
2.Sound gain:>= 28dB+/- 5dB
3.Total harmonic wave distortion:<= 3%
4.Frequency range:300-3500MHz
5.Input Noise:<=32dB
6.Voltage:d.c.1.5V
7.Current:<=2mA
8. Full charing about 2 hours
9. Working time more than 30 hours
10. Built-in 25mAH recharing battery for hearing aid unit
11. Charging box without built-in battery, needs USB charing cable directly

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