Speaker diameter:50 mm

Sensitivity:118 ±3dB

Impedance:32Ω±15%

Frequency Response:20Hz-20,000Hz

Cable Length : 2.1m±10%

Power Rating:20mW

Input Power:30mW

Hedset Jack: 3.5mm & USB combo

Microphone size:ø6.0×2.7 mm

Mic Sensitivity:-38±3dB

Directivity:Uni-directional