Top Telecommunication Headset

Telecommunicaiton Headset
Specifications:
Driver unit: 1*30mm Speaker
Frequency response: 20-20KHz
Impedance: 150ohms
Sensitivity( at 1KHz): 110dB
Resonance frequency(Fo): 300Hz
Frequency response: Fo-6KHz
Max input power: 10mW
Mic sensitivity: -34dB
Plug: 2.5mm stereo( Or RJ11 jack)