* peaker diameter:10 mm
*Mylar: 6U
*Impedance: 32 ohm/16 ohm
*Sensitivity: 105+/-3dB, S.P.L. at 1kHz
*Frequency response: 20Hz-20,000Hz
*Input power : Nom2mw,Max4mw;
*Distortion : Less than 5% at 1KHz 2mw;
*Cord length: 1.25 m
*Plugs type: 3.5mm stereo
*Material of the earphone shell: Metal