eBay

Not compatible Bluetooth speakers, phones, computers and tablets.
Voice amplifiers is not included.
Can Only Plug in mic jack, no plug in Aux jack, otherwise no sound can be heard.
It may take a while for the first use


The receiver is powered by a rechargeable battery that can be used for up to 6 hours after only 3 hours of charging	The receiver can only be inserted into the MIC interface, not the AUX interface, otherwise there will be no sound	The receiver automatically scans the microphone, just plug the receiver into the MIC interface and turn on the switch of the microphone.	The effective use distance can reach 50M, and because of the adjustment button on the microphone, you can adjust the sound anytime, anywhere.