Fangrui Product Details 1. S13 One To Two Yellow Case Usb-ctype-c Interface Wireless Lavalier Noise Canceling Microphone With Charging Case 2. Comes With Charging Compartment Wireless Lavalier Microphone, No Need For Cumbersome Operation, Compact And Portable 3. 2.4g Wireless Technology, Reverberation Sound Effect, Double Noise Reduction, Wireless Live Broadcast With Goods, Omnidirectional Radio, High-definition Sound Quality, 50-meter Barrier-free Transmission, 8h Long Battery Life, Powerful Compatibility 4. Compatible With Mainstream Devices On The Market, Supporting Mobile Phonescomputerscamerassound Cardsvideo Cameras And Applicable To Major Mainstream App Software 5. 2.4g Wireless Technology, Ready To Use, Automatic Frequency Pairing, True Wireless Is Not Bound, Automatic Pairing When Turned On, No Other Operations Are Required, And The Operation Is Simple 6. The Microphone Can Be Fully Charged For 6 Hours, And The Charging Box Can Fully Charge The Microphone 8 Times 7. Support Recording While Charging The Phone 8. Clear And Noise-free, Low Latency, Plug And Play 9. Intelligent Noise Reduction, Omnidirectional And Clear Sound Pickup, Compatible With Mobile Phonescameras, Etc. 10. Start Up Immediately After Opening The Box, Automatic Code Matching, Plug And Play In 1 Second To Connect 11. The Lavalier Has No Pressure, Is More Stable And Does Not Fall Off, And Is More Convenient To Carry 12. Automatic Calculation Of Active Noise Reduction To Achieve Noise Reduction Effects For Different Noise Environments 13. High-sensitivity Microphone Core, 360-degree Omni-directional High-definition Pickup, Strong Anti-interference Ability And Effective Identification Of The Original Sound, And Can Still Record Clearly In Noisy Environments 14. Built-in Professional Receiving Chip, High Sensitivity And Stable Transmission 15. Recording While Charging, Fine Matte Surface 16. Parameter: 17. Material: Abs+pc 18. Sensitivity: -26db 19. Signal-to-noise Ratio: Greater Than Or Equal To 90 Decibels 20. Battery Capacity: 350mah 21. Frequency Response: 20hz-25khz<b