Logitech’s cordless optical TrackMan lets you work where and how you want with the freedom of a cordless mouse, the comfort of a trackball, and the precision of optical technology. It’s Logitech’s most advanced trackball finger-operated trackball mouse. Save space and eliminate desktop clutter. Take advantage of extra buttons that help you navigate around Windows and the Web more easily. And with Logitech’s patented optical technology, you get virtually maintenance-free precision and smooth tracking.