Hearing aid
1.Max Sound Output: 130dB ± 4dB
2.Max Gain: 58 ± 5dB
3.Harmonic Wave Distortion: ≤8% (AT 1000 Hz)
4.Input Noise: ≤ 28 dB
5.Frequency Range: 300Hz ~ 4000Hz
6.Working Voltage: 1.5V
7.Working Current: ≤ 6.8mA Hearing aid coil sensitivity >100dB