Fangrui Product Details 1. J20 2 In 1 Wireless Lavalier Microphone Audio Video Recording ,specification: Usb-c Type-c Interface 2. One Button Three Levels Of Noise Reduction, Easy To Use 3. 360 Degree High Fidelity Sound Pickup: 48k 16bit Lossless Radio, Using High Sensitivity Microphone, With Digital Processing Technology, Restore High Fidelity Sound Quality 4. Transmitter With Charging Box Can Work For 24 Hours, Long Battery Life 5. Line-of-sight Transmission Up To 50 Meters, Stable Radio, More Stable Creation 6. 5 Dual-channel Radio System: By A Receiver And Two Transmitters, Can Simultaneously Capture Two Sources Of Sound, The Solution For Two People Vlog And Two People Live 7. Small Size, Light Weight, With A Flat Design With A Clip As Light As Nothing, More Aesthetic 8. Furry Wind Shield Can Effectively Suppress Wind Noise, In Windy Or Noisy Environment Can Still Be Included In The Clear Sound. 9. Plug And Play, Support Cell Phone Charging At The Same Time 10. Parameters: 11. Wireless Transmission: Bluetooth Protocol, 2.4ghz Adaptive Frequency Modulation 12. Working Distance: 50 Meters 13. Built-in Microphone: -38db +-3db Omnidirectional Condenser Microphone 14. Frequency Response Range: 20hz-20khz 15. Headphone Monitoring: Adaptable To Type-c Interface Headphones 16. Support Reverb Function, Support Three-stage Noise Reduction 17. Using Time: Tx-8 Hours, Rx-8 Hours, 24 Hours With The Charging Case 18. Charging Time: Tx-1.5 Hours, Rx-1.5 Hours, Charging Box: 1.5 Hours