a type of computer mousing device that uses a laser beam rather than a ball to track the movement of the user's hand. The laser mouse supersedes and is more sensitive than the optical mouse, which superseded the conventional ball mouse.
radio: medium for communication
having no wires; "a wireless security system"
Lacking or not requiring wires
transmission by radio waves
Logitech V450 Cordless Laser
Cool new mouse of mine. I intended just to use it with my laptop (the wireless receiver is stored inside the mouse), but its so sleek and good to use that it quickly became my only mouse, replacing the really old wired thing.