Fangrui Product Details 1. 4ghz Wireless Microphone System:the 2.4ghz Wireless Frequency Band, Which Has Strong Anti-interference Ability, Longer Transmission Distance And High Stability, Solid Rf Connection Within A 100 Feet Range. (affected By Environmental Factors). Stable Wireless Technology Excellent Sound Quality:the Wireless Xlr Adapter Has A Latency Of Less Than 4ms, 24bit Audio Resolution With Sampling Frequency Of 48k. It Can Transmit Clear And Fidelity Sound Signals Without Bad Noise And Delay. Make Your Professional Microphone Wireless:wireless Microphone Transmitter Receiver Is Compact And Portable, Let You Get Rid Of Xlr Cables Forever! Built-in Rechargeable Battery And Power Indicator Light, Battery Life Is A Decent 3.5-5 Hours (it Depends On What You Use It For), And You Can Also Charge Both The Receiver And Transmitter At The Same Time. Super Easy To Use: Small And Delicate, No Complicated Settings, Plug And Play Design Is Convenient To Use. You Would Find That The Xlr Wireless Transmitter And Receiver Works Ve