DESC: The freedom of wireless comes with Optical Trackball, Scroll Wheels, Windows® Key, Multimedia Control Keys, Internet Hot Keys and (MCE) Media Center Edition controls all are built in. If you are looking the most cost effective, efficient and productive personal wireless keyboard you will use, this one is for you. It has quick access to MCE home entertainment with a touch of the button. This lets you operate you most of the multimedia software with easy access to the control keys. It is wireless, lightweight and stylish which offers mobility and comfort. It is ideal for Windows Vista and XP with MCE.