Earphone:
Frequency
Driv.Unit :∮ 27mm, 30mm, 40mm
Sensitivity : 95 ~110 dB
Mylar spk : 19 μ , 16 μ
Frequency : 20Hz-20KHz
Impedance : 320hm at 1KHz
Microphone:
Mic dimension : ∮ 6x5mm, 6x2.7mm
Sensitivity : -58dB+-3dB
Directivity : Omni-Direction
Cable length : 2.5mm
Plug type : 3.5mm stereo
Application : VoIP, Mobile comm.unication