Driver Diameter:40mm
Sensitivity:115+/-5db
lmpedence:32ohms
Mic Sensitivity:-45db+/-3db
Mic impedance:2.2ohms
Directivity:All directivity
Frequency:20Hz-20KHZ
Mic Diameter:6.0x5.0mm
Cable length:1.5M+/-0.1M
Headset interface:3.5mm 4 Pin