1. Working voltage: DC24V (supplied by the host)
2. Microphone type: cardioid directional electret
3. Sensitivity: - 46dbv / PA
4. Frequency response: 70Hz ~ 18khz
5. Input impedance: 2K Ω
6. Directivity: 0 ° / 180 ° > 20dB (1kHz)
7. Equivalent noise: 20dBA (SPL)
8. Maximum sound pressure level of microphone: 125dB (THD < 3%)
9. Signal to noise ratio: > 80dB
10. Channel crosstalk: > 80dB
11. Total harmonic distortion: < 0.05%
12. Earphone volume: > 10 Ω / 10MW
13. Built in Speaker: 8 Ω / 2W
14. External dimension: 195 × one hundred and thirty-seven × 52mm
15. Weight: 1.2kg
16. Color: iron gray
Functional characteristics of discussion chairman unit
1. Professional high fidelity cardioid directional capacitive electret microphone with sensitive pickup and clear voice, and the bandwidth reaches 70Hz ~ 18khz
2. Anti interference circuit design is adopted to prevent the interference of mobile phones and other electronic products.
3. The microphone pole and key are equipped with LED aperture, which can display the status of speaking and closing
4. With 2.3-inch high brightness full view LCD display, the display content is clear
5. Built in high fidelity speaker and headphone output socket, with clear sound quality and volume adjustment button,
6. With audio start function, the power supply of microphone unit will be turned on automatically when speaking.
7. It supports multiple chairman units, has priority functions and can control the conference atmosphere.
8. 8P-DIN special aviation T-type cable is used for connection between units