Unit Driver:ф8mm;
Impedance:16±15%ohm;
Sensitivity:102±3dB(at 1K Hz);
Frequency Range:20Hz-20KHz;
Rated Power:2mW;                
Maximum power:5mW; 
THD.: ≦5%                               
Input Connection: 3.5mm plug plating Gold ;
Cord Length:1.2m