Kensington Orbit Mouse - Wired Ergonomic TrackBall Mouse for PC, Mac and Windows with Scroll Ring, Ambidextrous Design and Optical Tracking - Blue (K72337EU)

Product Description All-day comfort and scrolling come together in the Orbit Trackball with Scroll Ring. The award-winning scroll ring allows you to spin through web pages and long documents without the need for clicking so you can scan up and down pages with ease. It offers better ergonomics, with less wrist and hand movement that will ease the pain of repetitive-stress injuries. KensingtonWorks™ software gives you the opportunity to assign specific functions to your two buttons, adjust cursor and scrolling speed, and create a truly customized productivity experience. Optical tracking provides smooth and accurate cursor control, and a detachable wrist rest offers terrific ergonomic support when you’re hard at work. Medium 40 mm ball is designed as a perfect sphere to provide exceptional precision. Ambidextrous design works equally well for both right-handed and left-handed users. Plug Set Contains: 1 x Kensington Orbit Trackball with Scroll Ring (Black)

• Scroll Ring and Medium Ball - Spin the dial to move up and down web pages or documents with complete ease. The blue 40 mm ball has been specially designed with an absolute spherical, hard surface for precise tracking and control
• KensingtonWorks 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 2 buttons, as well as adjusting cursor and scrolling speeds
• Optical Tracking Technology - Provides precise cursor movement for superior accuracy so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency
• 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
• Ambidextrous Design - Works equally well for both right-handed and left-handed users to get the most out of their trackball.Plug and Play Installation - Quickly get clicking and scrolling with fast, simple installation through the reliable wired USB connection, plus it doesn’t need batteries.PC and Mac compatible - Compatible with Windows Vista and Mac OS X