* Driver Diameter:30mm*2pcs 40mm*2pcs
* Impedance:32Ω
* Sensitivity:102±3DB
* Frequency:20HZ-20KHZ
* Mic Diameter:4.0*1.5mm
* Mic Sensitevity:-38±3dB
* Mic impedance:2.2KΩ
* Directivity:All Directivity
* Cable length:2.2M±0.1
* LED Operating Voltage:DC5V±5%
* Opetating Current:≥100mA
*Headset interface:USB+3.5mm