Cascaded Omnidirectional Microphone with Wireless Expansion Mic | OEM

Wireless expansion microphone specifications:

1. Frequency range: 640MHz ~ 690MHz

2. Sensitivity: microphone -45dB ±3dB (0dB=1V/Pa at 1kHz)

3. Capsule type: dynamic microphone, cardioid pattern

4. Signal-to-noise ratio: ≥ 80dB

5. Frequency response: 50Hz - 16kHz

6. Transmit power: > 12dBm

7. Distortion THD+N: <0.5%

8. Output impedance: 600 ohms ±30%

9. Effective distance: > 40m

10. Latency: <3ms

11. Operating temperature: -25°C to 60°C

12. Power: 2 AA batteries

13. Operating current: 110mA @ 3V

14. Operating time: 12 hours

Array omnidirectional microphone specifications:

15. Number of microphones: 4 digital silicon mics

16. Microphone sensitivity: -26dBFS

17. Microphone signal-to-noise ratio: 64 dB

18. Microphone processing technology: built-in high-performance 3A algorithm

19. Microphone sampling rate: 16~48K

20. Transmission: 5.8G wireless, 3.5mm

21. Pickup distance: 6m radius, optimal 4m radius

22. 8 adjustable microphone modes to suit different conference room scenarios, such as glass rooms

23. Intelligent mixing, full-duplex echo cancellation, beamforming, noise suppression, automatic gain control and other voice processing algorithms

24. Supports connection of 2 external wireless expansion microphones

25. USB function: connect to PC and video conferencing system for full-duplex hands-free calls

26. 3.5mm analog function: connect to PC and video conferencing system for full-duplex hands-free calls

27. Supports local sound reinforcement via wireless microphone

28. Headphone jack for private calls

29. Supports external speaker for larger conference room scenarios

30. Compatible with various software video conferencing platforms: Tencent Meeting, ZOOM, DingTalk, Haoshitong, Vidyo, Webex, Skype for Business, Google Hangouts, and all web conferencing software