1.Speaker size: 40mm
2.Sensivitity: 118+/-3dB
3.Frequency range: 15 Hz-20KHz
4.Microphone: 6.0x 5.0mm
5.Microphone sensitivity: -36+/-3dB
6.Directionality: omni-directional
7.Cable length: 2.1M +/-0.15
8.LED working voltage: DC 5V +/- 5%
9.Headset jack: USB+3.5mm 4 Pin
10.System support: The 32-bit and 64-bit Win 7/Win8/Win8.1/Win 10/XP
