UHF Microphone System 4 Channel Handheld Karaoke KTV Mic Audio Dynamic Wireless

Transmission range: The wireless microphone system can support up to 200 feet range, 50 compatible frequencies (4 X 50) on each channel for interference-free reception, theoretically support up to 50 receivers and 200 microphones. The UHF frequency range is within 210 - 290 MHz and complies with FCC regulations.