Mini Hearing Aid
Techinical Specifications:
Max Sound Output of Hearing Aid: 130dB ± 5dB
Max Sound Gain:  50dB ± 5dB
Harmonic Wave Distortion:     ≤5%     
Frequency Range:   450~3500 hz
Input Noise:  ≤30dB
Battery:    AG13 
Working Voltage dc1.5V
Working Current:     ≤4mA
Measurement: 4.6*3.8*0.9cm
Net Weight: 8g
*Mini size Economic analogue BTE
*N-H for adjust the frequency
*Cheap price and high quality good for gift and promotion  
*Ajustable volume control
Packing Information:
45*35*33cm  200pcs/CTN/0.052CBM/21KGS