Mini Digital Rechargeable Hearing Aids Invisible In Ear Sound Voice Amplifier ！
£58.67
Input Noise:<=28dB. Max sound out put:111+/- 5dB. Sound gain:>= 30dB+/- 5dB. 1 x USB charging cable. The recharging box with power capacity LED display. Full charing in 2~3 hours, working more than 30 hours.
