Wireless Microphone Karaoke System with Rechargeable Bluetooth Receiver,Profe…
(No need to buy batteries! Just plug and use! 1)Power on mic/receiver, they will connect each other automatically though 2.4G technology 2)Plug the receiver into the Speaker with 1/4"(6.35mm)port, now you can use the mic How To Pair/Reset K380S Microphone with Receiver?.