New Kensington Expert Trackball Mouse, Diamond Eye Optical tracking, Award-winning Scroll Ring, Large ball for maximum precision and control, Wired USB Connection with TrackballWorks Customization

New Kensington Expert Trackball Mouse The Expert Mouse Wired Trackball is the productivity enhancer professionals use to get more work done in less time. It offers highly accurate cursor control and great comfort for your hand and wrist. Trackball Works software can customize the 4 buttons, and our award-winning Scroll Ring lets you quickly scan up and down your screen. Highlight · Large ball is designed as a perfect sphere to provide exceptional precision; · Diamond Eye optical tracking technology for premium cursor control and accuracy · Award-winning Scroll Ring lets you scan up and down pages with ease; · Detachable wrist rest supports hand and wrist for ergonomic comfort · Ambidextrous design works equally well for both right-handed and left-handed users · Trackball Works software lets you customize all 4 buttons, adjust cursor speed · Auto-sleep helps conserve AA battery life; Compatibility: Mac OS 10.8 and above; Windows 10, 8.1, 8, 7; Chrome OS 44 and above Wired USB Connection Provides a direct and reliable connection for continuous performance and eliminates the need for batteries. TrackballWorks Customization Free downloadable software provides an even more personalized experience, giving you the ability to assign a wide variety of program functions to each of the 4 buttons, as well as adjusting cursor and scrolling speeds. DiamondEye Optical Tracking Movement detection technology provides smooth, precise cursor control so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency. Scroll Ring and Large Ball Spin the dial to move up and down web pages or documents with complete ease. The large 55mm ball has been specially designed with an absolute spherical, hard surface for precise tracking and control. Ambidextrous Design Works equally well for both right-handed and left-handed users to get the most out of their trackball. Detachable Wrist Rest Soft cushioning cradles the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer.