BTE Hearing Aid – JH-D59

– Max Sound Output: 127±3DB
– Sound Gain: 114±4DB
– Total Harmonic Wave Distortion:≤7% + 3%
– Frequency Range: 450-4000Hz
– Input Noise: ≤29dB + 3dB
– Voltage: D.C.3.7V
– Current: ≤10mA