产品介绍：

Product Description:
Driver diameter: 40mm 
Impedance: 32Ohm 
Sensitivity: 105dB +/- 3dB at 1KHz 
Frequency range: 15Hz-20KHz 
Mic dimension: 6.0 * 5.0mm 
Mic sensitivity: -38dB +/- 3dB 
Mic impedance: 2.2kohm 
LED working voltage: DC5V +/- 5% 
Headset interface: 3.5mm + USB (USB for LED light) 
Cable length: Approx. 2.2m / 7.22ft