1. Horn diameter: 50mm
2. Impedance: 32 ohm +/-15%
3. Sensitivity: 108+/-3db
4. Frequency range: 20Hz-20 KHz
5. Microphone size: 6.0x2.7mm
6. Microphone sensitivity: -42+/-3dB
7. Cable length: 2.1M+/-15%
8. Microphone cathodic impedance: 2.2 ohm
9. Directivity: omnidirectional
10. LED working voltage: 3.7V
11. Working current: less than or equal to 100mA
12. Headphone jack: USB
13. Receiving range and distance: 15m/360 degrees
14. Ergonomic design, comfortable to wear
15. The noise reduction microphone brings you a noise-free experience
16. Use time: about 12 hours