Fangrui Product Details 1. Dual Microphone Mini Wireless Finger Clip Microphone Mobile Phone Live Noise Reduction Bluetooth Microphone 2. Transmission Distance: 30m (under Barrier-free Conditions) 3. Sensitivity: -26db 4. Transmission Delay: 15ms 5. Specified Type: Omnidirectional Condenser Microphone 6. Working Frequency: 2.4g Wireless Connection 7. Signal-to-noise Ratio: 70dbm 8. Charging Interface: Type-c 9. Transmission Frequency Band: 2400mz-2483.5m 10. Battery Capacity: 60mah For Microphone, 250mah For Charging Case 11. Charging Time: About 1.5h 12. Use Time: About 6-30h 13. Charging Box Size: About 6.9 X 5.2cm 14. Weight: About 52g 15. Features: 16. Universal For Mobile Phonescomputersslrs And Other Devices 17. The Microphone Signal-to-noise Ratio Reaches 70db, Ensuring Clear Sound Quality, Reducing Environmental Interference, And Recording Every Detail Of The Sound 18. Built-in Condenser Microphone, 360-degree Omnidirectional Radio, Fully Capture Radio Details, Restore More Three-dimensional And Full Sound Effects 19. Support Recording While Charging The Phone, The Receiver Is Equipped With A Direct Charging Port For The Phone 20. With The Charging Box, The Comprehensive Battery Life Is Up To 30 Hours, And The Single Microphone Is Up To 6 Hours, No Need To Worry About Power Consumption 21. Enc Noise Reduction, Plug And Play 22. Exquisite And Compact, Simple Shape, Easy To Wear, Easy To Put Into The Pocket 23. 2.4g Wireless Technology, Ready To Use, Automatic Frequency 24. No Need For Tedious Operation, Turn On The Receiver And Plug It In To Automatically Connect 25. Multi-chip Hybrid Processing, One-click Noise Reduction Is More Thorough