Fangrui Product Details 1. K1 For Handheld Dynamic Mic Wired To Wireless Microphone Converter, 2 Transmitter + 1 Receiver 2. Plug-and-play Convenience: This Wireless Microphone Converter Features A User-friendly Plug-and-play Design, Eliminating The Need For Complex Setups. Simply Connect The Device And Start Using It Immediately, Making It Suitable For Users Of All Technical Levels. 3. High-quality Wireless Audio Transmission: Utilizing Advanced Wireless Audio Transmission Technology, This Xlr Transmitter And Receiver Ensure Clear And Stable Audio Signals. Enjoy High-fidelity Sound Quality Whether Indoors Or Outdoors. 4. Durable Gold-plated Connectors: Equipped With Gold-plated Connectors, This Wireless Microphone System Resists Oxidation And Corrosion, Ensuring Stable Signal Transmission Over Long-term Use. This Significantly Enhances The Product's Durability And Reliability. 5. Extended Transmission Range: The Microphone Wire-to-wireless System Supports Ultra-long-distance Transmission, With Coverage Up To 50 Meters. Suitable For Various Scenarios Including Performances, Recording, And Home Entertainment, It Offers Seamless Adaptability. 6. Multi-device Simultaneous Use: Our Wireless Microphone Adapter Supports The Simultaneous Use Of Multiple Sets Of Devices. Users Can Flexibly Expand Their Setup, Perfectly Adapting To Different Audio Equipment And Easily Meeting Various Usage Requirements. 7. Specifications: 8. Frequency Range: 550.25-573.75mhz 9. Receiving Sensitivity: -88db 10. Power Supply: Dc5v 11. Total Harmonic Distortion: 0.2 Percent 12. Dynamic Range: 110db 13. Output Power: 10mw 14. Receiver Battery Capacity: 200mah 15. Transmitter Battery Capacity: 200mah 16. Frequency Response: 20hz-20khz (3db) 17. Transmission Distance: 30-50m