Headset:

Speaker diameter : 50 mm

Sensitivity : 116db±3dB

Impedance :16Ω±15%

Frequency Response : 20Hz-20,000Hz

Cable Length : 2.1m±10%

Power Rating : 20mW

Input Power : 30mW

Hedset Jack : 3.5MM + USB combo controller  

With in-line controller 

Microphone size : ø6.0×5.0mm

Mic Sensitivity : -38±3dB

Directivity : Omni-directional