CLASSICPRO CWR800 CWM800 Wireless Microphone Set - Works Well Functionality confirmed and in good working order before listing. I own two sets, and I'm selling the spare. (I use it paired with a Shure wireless system, and I don't notice much difference.) I think it's a pretty good wireless microphone. It's already set up and paired. To use it, press the power button on the front left of the receiver (see photo 2). Then, long-press the small square button on the bottom of the microphone transmitter, and the light will turn on, and sound will come from the amplifier. It's not complicated. I'm selling one of my two sets, the spare. As a bonus, I'm including a new aftermarket microphone head with a blue line. The original microphone head has been cleaned and disinfected, including the outer and inner sponges, so you can use it comfortably upon arrival. If anyone is looking for a wireless microphone, how about this one?