Hearing Aid Style:BTE , Cyber Sonic Hearing aids
Maximum Saturation Sound Pressure Level(SPL): 130+-5 dB
Maximum Acoustic Gain: >= 50 dB
Total Harmonic Wave Distortion:<= 5%
Frequency Response:300-4000 Hz
Equivalent Input Noise:<= 30 dB
Working Voltage: D.C.1.5 V
Operating Current: <= 4 mA
Battery Size:AG13 / A675
Volumes Control:6 levels
ON/ OFF Switch:Yes.
Moq 1000pcs.
