Medium file and comfortable .
It is the intermediate frequency, it is suitable the severe damage and the not very serious of the audition .
Max SSPLï¼±4dBï¼129
Full-on-gainï¼FOGï¼ï¼±5dBï¼30
The scope of frequencyï¼Hzï¼ 100-3000
Equivalent input noise levelï¼±dBï¼≤25
Harmonic distortionï¼%ï¼≤5.5
Power supply electric voltageï¼Vï¼1.4
The sum settles electric currentï¼mAï¼1.6
Battery model number A312ãPR41
