Fangrui Product Details 1. Lavalier Wireless Microphone Mobile Phone Live Video Shooting Small Microphone, Specification: 8 Pin Direct 1 To 1 2. Channel: 2 3. Ultra-low Time Lapse 4. Universal For Mobile Phones And Computers 5. Battery Life: 6-8 Hours 6. Signal-to-noise Ratio: ≥85db 7. Input Voltage: 220v 8. 20m Barrier-free Connection 9. 360-degree Sound Pickup 10. Frequency Response Range: 20hz-20khz 11. Built-in Battery Capacity: 80 Ma 12. Strong Anti-interference Ability, Effectively Identifying The Original Sound 13. Automatic Pairing, Intelligent Noise Reduction, Stable Signal 14. Eat And Broadcast, Live Broadcast, Interview Recording, And The Radio Is Clear 15. Bluetooth 2.4ghz Frequency, Plug In And Automatically Connect For 1 Second, No Need To Set Up The Connection 16. Note: Vivoiqoorealme Brand Mobile Phones Need To Search For "otg" In The Settings-turn On The Otg Power Supply For Normal Use 17. Unit Weight: 0.18kg 18. Dimensions: 130 X 90 X 25mm