The Kensington Wireless Orbit Mouse offers a precise, compact and versatile trackball experience with a centered-ball design. With no wires to tie you down, the 2.4 GHz wireless with storable nano receiver works wherever you do - at your home or office. And the unique touch scrolling lets you glide effortlessly through web pages and documents. The Kensington Orbit Wireless Trackball works with Trackball Works software for customized experience.