Using Silent Technology, the Silent Corded Optical Mouse is truly silent with silent click switches and 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 and a precision scroll wheel for easy scrolling. Turn your noisy office into a place of tranquility and enjoy the sound of silence. Mouse interfaces through your machine's USB port. It is compatible with Windows XP, Vista, and Windows 7 and higher; Mac OS X 10.4 and higher; Linux Kernel 2.6 and higher.