Specifications: -100% brand new, high quality -Name: Hearing amplifiers with charging case -Material: ABS+silicone -Color:white+skin闂備焦瀵х粙鎴︽儊瀹勵晱te闂備焦瀵х粙鎴︽偩閻х嘲ck闂備焦瀵х粙鎴︻敊閹辩+blue-Power mode: rechargeable -Max sound out put:111+/- 5dB-Sound gain:>= 30dB+/- 5dB-Total harmonic wave distortion:<= 5%-Frequency range: F1≤200Hz, F2≥5000Hz-Input Noise:<=28dB-Voltage:d.c.1.5V-Current:<=1.2mA-Full charing in 2 3 hours, working more than 30 hours-The 300mAh recharging box for 3 times recharging to extend hearing amplifiers with 90 hours working.-The recharging box with power capacity LED display Packing List:Hear Aidsx1PairEar Plugx3PairUSB Cablex1 No.
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