1. Speaker Size: 50mm
2. Sensitivity: 106+/-3db
3. Microphone: 6.0x2.7mm
4. Impedance:16ohm+/-15%
5. Cable Length: 2.2m
6. Directionality: Omi-directional
7. Microphone Impedance: 2.2kohm
8. Frequency Range: 20Hz-20KHz
9. LED Working Voltage: DC 5V
10. Microphone Sensitivity: -38+/-1dB
11. Headset Jack: USB + 3.5mm 4Pin