MaxSSPL(±5dB)          128
<br />Full-on-gain(FOG)(1.6KZ.±5dB)  31       
<br />Equivalent input noise level(±dB)    22
<br />Harmonic distortion(%)(1.6KHZ)   4
<br />Power supply electric voltage(V)       1.5
<br />The sum settles electric current(mA)   3 
<br />Continuoue wrok time (H)  10
<br />Charging time       6-8H