Digital Rechargeable Hearing Aids Acousticon Amplifier Audiphone Behind Ear Sound

Unique Rechargeable Hearing Amplifier. Best sound amplifier in ear. Features: Working Current: 1.2mA Signal to Noise Ration: ≤32dB Max Out: 129 ± 3dB Max Gain: ≥ 40 ± 5dB Harmonic Distortion: ≤10% Colour: Silver/ Light Blue Size: 5*4cm/ 2” x 1.6”/ Length X Width Long standby time Safe charging Digital chip Intelligent noise reduction Anti-howling Easy Operation Volume Control Bendable Earline Lightweight Fully charged replaceable artery can stand up to 40h use.