JINGHAO 1 Pair Hearing Aids Invisible In Ear Enhancer Voice Hearing Amplifier

Equalizer Input Noise: ≦29DB±3. 1 Pair x Hearing Aids. Hearing Aid Charging Current: ≦30mA. Battery: Built-in lithium battery. Equalizer Input Noise : ≦29DB±3. we only sales hearing amplifier. Equivalent Input Noise Level: ≦35dB.

eBay