Fangrui Product Details 1. One To Two Outdoor Recording Lavalier Microphone Noise Canceling Wireless Mic For Live Streaming 2. Realize Long-distance High-definition Radio For Live Webcasting, Video Vlog Shooting, Interviews, Audio, Video Teaching And Other Occasions Use 3. Three-level Noise Reduction, Reverb, Monitoring, Playback, Mute, Can Be Live While Charging The Phone 4. 2.4g Wireless Coupling, Boot Automatically Connected, Easy To Operate, Support For A Tow Two People To Use 5. Can Be Used For Cell Phones, Computers And Other Devices Without App 6. Comes With A Charging Compartment, Can Be Charged To The Microphone, Convenient Storage, Portable Outings 7. Built-in Intelligent Active Noise Reduction Chip, Strong Anti-interference Ability, Effective Recognition Of The Original Sound, In A Noisy Environment Can Still Be Clear Recording 8. Compatible With Mainstream Devices On The Market, Support Most Models Of Cell Phonescomputerscamerassound Cardscamcorders On The Market 9. Dual-diaphragm 360-degree Surround Sound Pickup With High Sensitivity Microphone, Receiving No Dead Angle 10. Parameters: 11. Microphone: Digital Silicon Mark 12. Input Voltage: 5v 13. Battery Capacity: 60mah 14. Charging Compartment Battery; 600mah 15. Continuity: 4-6 Hours 16. Signal-to-noise Ratio: 64dbm Adaptive Noise Reduction 17. Transmission Delay: 30ms 18. Sensitivity: -42db 19. Frequency Range: 20hz-20khz 20. Transmission Distance: 20 Meters Without Obstacles 21. Size (including Color Box): 12.1 X 8.1 X 3.1cm 22. Weight: 76g