Features：
- Type : Electret Condenser Microphone
- Directive : Unidirectional
- Rated Impedance : 2.5k ohms,unbalanced
- Rated sensitivity : -51 dB (1kHz,OdB = 1 V/Pa)
- Frequency Response : 50Hz – 12kHz
- Cable Lenght :10m
- Material color : Battery Case : ABS,Black ;Headset : metal,black
- Dimensions : 38 x 89.5 x 19mm
