(Each microphone channel number is inconsistent to avoid interference). Professional UHF Wireless Karaoke Microphone System The microphones adopt fcc certified UHF frequency band, which provide the long transmission distance (Open Place: UHF distance 200ft, Frequency Response 30Hz-18kHz, Signal stability, No delay, No radiation, Anti-howling, Anti-jamming, Constant frequency portable and professional dual dynamic microphone, plug and play, no extra setting. ).
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