Fangrui Product Details 1. M18 Wireless Microphone Collar Clip Recording Equipment, Style: 1 In 1 8pin 2. Sound Channel: 2.0 3. Bluetooth Protocol: 5.0 4. Battery Capacity: 400mah 5. Frequency Response Range: 100hz-20khz 6. Signal-to-noise Ratio: 75db Or More 7. Material: Abs 8. Scope Of Application: For Cameras, Cell Phones, Video Cameras, Computers, Sound Cards, Microphones, Recorders, Mixers And Other Equipment 9. Accessories: Headphones, Wind Shield, Camera Cable, Charging Cable, Storage Box 10. Weight: About 26g 11. Size: About 4.7 X 4 X 1.5cm 12. Features: 13. Wireless Recording Vlog, Non-sensory Wear, Noise Reduction Effect, Can Filter Noise And Ambient Sound, So That The Sound Is More Stereo And Clear 14. Built-in Dsp Reverb Chip, Intelligent Filtering Of Environmental Noise, With Reverb Effect, Singing More Sense 15. Transmitter Receiver Are With 3.5mm Interface, Real-time Ear Return, While Recording And Adjusting 16. About 50 Meters Long-distance Transmission, High-performance Wireless Technology, Signal Stability 17. 360-degree High-definition Sound Pickup, Built-in Microphone, Equal Acceptance Of Sound In All Directions, The Human Voice Clear Restoration 18. Oled Display, Good Brightness, High Contrast, Clearer Recording, Real-time Display Of Various Modes Of Status 19. Lightweight And Portable, Easy To Use