Invisible Hearing Aids Rechargeable Hearing Aid For Elderly Deafness Mini Digital Sound Amplifier Severe Hearing Loss Ear Aid

Rechargeable Hearing Aid BTE Digital Invisible Hearing Aids For Elderly Deafness

Mini Hearing Aids Sound Amplifier Voice Adjustable Portable Inner Ear Aid Care

Product Feature:

1.USB Rechargeable,Long Standby Time.
–Charging 3 Hours,Working 40 Hours
2.One key operation for elderly,Easy to use.
3.Non-inductive design,Comfortable to wear.
4.Digital Noise Cancelling,Make you hear better and clearer.

Product Parameters:

1.Product size:43×16.5×11.3 mm
2.Weight: about 3g
3.Material: medical – grade TPE environmentally friendly materials
4. Working Voltage: DC 3.7V
5. Working Current: ≤1mA
6. Frequency Response: 500-5000Hz
7. Max Saturation Acoustic Output: 129dB(+3dB)
8. Full Acoustic Gain: 40dB(±5dB)
9. Total Harmonic Distortion:＜10%
10. Equivalent Input Noise:＜32dB