Bietrun UHF Wireless Microphone Headset, 165ft Range, Working Time 6H, 1/4''Plug, Wireless Headset Mic ＆Handheld Mic 2 in 1, for Karaoke Speaker, Amplifier, Mic Speakers

Wireless microphone headset system: [Only for Mic Jack, Not support Aux/Line in Jack]The receiver has 1/4" plug connect, works with Mixer, Pa system speaker, desktop, speaker and amplifier. ●Support 15 sets of microphones working simultaneously in different frequency bands without interfering with each other. ●Change channel to avoid interference: Long press volume "—” button of the transmitter until the blue light flash 3 times, then stay on. [●Not Compatible Bluetooth Speakers/Macbook●]. Professional UHF Wireless Mic Performance: Upgraded Bietrun wireless microphone, FCC certified UHF independent frequency bands, high-sensitivity condenser microphone. ●Stable & Comfortable ●165 feet (50m) transmission distance ●Signal stability ●No delay ●No radiation ●Anti-howling ●Anti-jamming ●Constant frequency ●Clearer sound quality.