Control your cursor with a simple touch of the finger with the M570 Wireless Trackball from Logitech®. This stable trackball stays in one place and its sculpted shape supports your hand to let you work all day with ease, instead of chasing a mouse around your desk. It incorporates the tiny Logitech Unifying wireless receiver which is small enough to stay in your laptop. Plus, you can easily add compatible wireless devices to the same receiver. The integrated scroll wheel and easy-to-reach Back/Forward buttons make control simple, whether you are Web surfing on a laptop or navigating a home-theater PC. With these and more features, the M570 Wireless Trackball gives you precise cursor control wherever you want to use your trackball. Hard tables, comfy sofas and lumpy beds are all no problem for the M570.