Fangrui Product Details 1. Yesido Kr16 2 In 1 Wireless Lavalier Microphone 8 Pin Receiver With Charging Box 2. 360 Degrees Omnidirectional Pickup, Providing High-fidelity Sound Effect 3. The Microphone Has A Clip, Which Can Be Quickly Fastened To The Collar Or Chest Of Clothes For Easy Recording, Which Is Convenient For Hand-held Camera Interviews 4. No Need For Any App. No Messy Cables And Poor Noise Reduction, Just Plug The Receiver Into Your Phone, Turn On The Wireless Microphone, And It Will Automatically Match Up Immediately 5. Widely Used For Laptops And Cell Phones With A 8 Pin Port 6. Ideal For Video Recording, Live Stream, Interviews, Presentations, Virtual Conferences, Etc 7. Specifications: 8. Microphone Type: Digital Silicon Microphone 9. Antenna Type: Ceramic Antenna 10. Sampling Rate: 32khz 11. Transmission Frequency: 2.4ghz 12. Frequency Response Range: 20hz-20khz 13. Transmission Time: 20ms 14. Battery Capacity: 70mah (button Battery) 15. Charging Time: About 80 Minutes 16. Working Hours: 8 Hours 17. Transmission Distance: 50 Meters (barrier Free) 18. Charging Box Battery Capacity: 600mah 19. Packaging List: 20. 2 X Lavalier Microphone 21. 1 X 8 Pin Receiver 22. 1 X User Manual 23. 1 X Type-c Charging Cable 24. 1 X Charging Box