This is a Nintendo wireless microphone. I purchased several of these for use at events, but I am selling them now that they are no longer needed. I have a total of six, so a discount is available for multiple purchases. Please feel free to contact me. Originally sold as the "Wii U Wireless Microphone," this product for the Wii U has the same specifications as the current "Nintendo USB Wireless Microphone" for the Switch, so it can also be used with the Switch (according to official information). The main body has several small scratches and stains. The included accessory is the USB receiver. Mic No. AJE257