Bietrun UHF Wireless Microphone Headset, 165Ft Range, Working Time 6H, 1/4''Plug, Wireless Headset Mic &Handheld Mic 2 In 1, For Karaoke Speaker, Ampl

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/Mac/book●].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.Easy to use: Please turn on the transmitter and receiver power switches, the blue light will flash for approximately 2s. Indicator light stops flashing after a successful match, then you can use it. No further operation. ●Headset and handheld is 2 in 1 design, easily change the handheld mode to headset mode to meet your needs.Charge & Work of Upgrade Microphone: Built in newest upgraded 450 mah rechargeable lithium-ion batteries, transmitter and receiver can be charged simultaneously with the dual usb v2.0 cable head. Fully charge is only 2.5 hours, working time upgraded to 6 hours.No Sound?: 1. Check if the connection is secure. 2.Check if a speaker with MIC is connected. (How to re-pair: ❶turn on transmitter and long press key "+ and -" for 5 seconds simultaneously, indicator light starts flashing(blue). ❷turn on receiver, wait for auto pairing about 5s. ❸indicator light stops flashing after a successful pairing). Please note: it's a microphone device for voice input, no auditory function, no speaker.ABS