Support Multiple Devices: Coming with a 1/4" ( 6.35 mm) audio cable, our microphone is compatible with devices like mixers, karaoke machines, amplifiers, powered speakers and more. For optimal sound output, please plug the microphone into the MIC IN input on your speaker.
Easy to Operate: Simply turn it on and the receiver will automatically sync with the transmitters frequency. Each wireless mic requires 2 AA batteries (batteries not included).