The Logitech 904369-0403 TrackMan Cordless Optical Mouse is a black wireless trackball mouse with programmable buttons. It operates on an optical tracking method and has a total of 8 buttons. This mouse is made by Logitech, a well-known brand in the computer peripherals industry, and is designed for convenience and precision in navigating on a computer. With its USB connectivity, it allows for easy plug-and-play functionality. Made in China, this mouse offers a comfortable and efficient user experience for those who prefer a trackball design.