Using Silent Technology, the Silent Corded Optical Mouse is truly silent with silent click switches & rubber covers. This mouse has been ergonomically designed to fit your hand comfortably. With its high-resolution optical technology, this mouse also offers smooth, precise tracking & a precision scroll wheel for easy scrolling. Turn your noisy office into a place of tranquility & enjoy the sound of silence. Mouse interfaces through your machine's USB port. It is compatible with Windows XP, Vista, & Windows 7 & higher; Mac OS x 10.4 & higher; Linux Kernel 2.6 & higher.