Speaker diameter:40 mm

Sensitivity:120±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

Microphone size:ø6.0×5.0mm

Mic Sensitivity:-38±3dB

Directivity:Omni-directional