1.Rechargeable BTE Hearing Aid
2.Powerful Sound Quality
3.Volume Control: O-N-H Switch
5.Aggressive Price
6.Fast Delivery
7.Rechargeable BTE Hearing Aid
8.Max Sound Output: 130dB±5dB
9.Max Sound Gain: 38dB±5dB
10.Harmonic Wave Distortion: <=5%
11.Frequency Range: 300~4000Hz
12.Input Noise: <=30dB
13.Battery: Rechargeable Battery
14.Working Voltage: DC 3.7V
15.Working Current: <=4mA