Apparecchio acustico digitale ricaricabile riduzione rumore invisibile in amplificatore auricolare

Input Noise: ≤28dB. TypeHearing Aid. 1 x English instruction manual. 1 x USB charging cable. Inout noise≤32dB. Full charing in 2~3 hours, working more than 30 hours. WearNo distinction between left and right ears.

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