One To Two Mini Wireless Collar-clip Noise-cancelling Microphone With Charging Case(Blue)

1. Charging current 50mA
2. Working current: 14.5mA
3. Power consumption of the whole machine: less than 16mA
4. Rated voltage: 3.7V
5. Wireless transmission: 2.4GHZ
6. Sound delay: less than 20mS
7. Sensitivity: (-38Db)
8. Adapter: 5V/1A
9. Transmission distance: 20 meters
10. Microphone: 360-degree omnidirectional
11. Frequency response: 100Hz-10KHZ
12. Signal-to-noise ratio: 60dB
13. Input sound pressure level: 115dBSPL (MAX)
14. Sampling frequency and sampling depth: 32KHz 16bit
15. Input voltage: DC4.8-5.2V
16. Microphone battery capacity: 60mAh
17. Working time: 3-4h
18. Charging current: 200mA
19. Charging compartment battery capacity: 350mHA
20. Working time: 2 times (two transmitters are charged at the same time)
21. Adapter: 5V/1A
22. One to two, two microphones can receive sound at the same time
23. CD-level sound quality, equipped with innovative three-level noise reduction, reverberation, three voice change (original voice/uncle voice/goddess voice) function
24. With memory function
25. 20 meters long-distance sound pickup
26. Equipped with storage box, compact and portable
27. Size: 54x53.7x18.5mm (including clip)
28. Weight: 40.8g