1. Approximate impedance: 20ohm
2. Sensitivity: 108+-3db
3. Frequency range: 20Hz-20KHz
4. Microphone size: 6.0x2.7mm
5. Microphone sensitivity: -48+-3dB
6. Microphone impedance: 2.2Kohm
7. Directionality: omnidirectional
8. Cable length: about 2.2 meters
9. LED working voltage: DC 5V
10. Working current: about 100mA
11. Headphone jack: USB+3.5mm
