Fangrui Product Details 1. Type-c 1 To 1 Lavalier Wireless Microphone Mobile Phone Live Video Shooting Small Microphone 2. Channel: 2 3. Dps Reverb 4. 2.4g, Noise Reduction 5. Compatible With Various Devices 6. Battery Life: 6-8 Hours 7. Signal To Noise Ratio: ≥85db 8. 20m Barrier-free Reception 9. Input Voltage: 220v 10. 360-degree Hd Surround Sound Pickup 11. Plug And Play, Stable Signal 12. Clear Sound Quality And High Sensitivity 13. Frequency Response Range: 20hz-20khz 14. Built-in Battery Capacity: 80 Ma 15. Strong Anti-interference, Free To Wear Without Restraint 16. Live Broadcast, Eat And Broadcast, Interview Recording And Accurate Radio 17. Bluetooth 2.4ghz Frequency, Plug In And Automatically Connect For 1 Second, No Need To Set Up The Connection 18. Oppovivoiqoorealme Brand Mobile Phones Should Search For "otg" In The Settings-turn On The Otg Power Supply To Be Used Normally 19. Unit Weight: 0.18kg 20. Dimensions: 6x1.3x1cm