The Orbit Trackball with Scroll Ring offers better ergonomics, for more comfortable use and reduced wrist and hand movement. Personalise the trackball via free TrackballWorks software and assign your own functions to each button. The award-winning Scroll Ring lets you scan up and down pages with ease.- Medium 40mm ball is designed as a perfect sphere to provide exceptional precision- Award-winning Scroll Ring lets you scan up and down pages with ease- Free TrackballWorks™ software allows you to customize buttons, cursor and scrolling speeds- Plug & Play wired USB connection gets you up and running quickly and easily- Compatible with Windows® 10, 8.1, 8, 7 and macOS® 10.8 or later
