Kensington Orbit Trackball with Scroll Ring - White

Features Scroll Ring and Medium Ball Spin the dial to move up and down web pages or documents with complete ease. The 40mm silver ball's hard surface is specially designed as a perfect sphere for precise tracking and control. TrackballWorks™ Customization Free downloadable software provides a personalized experience, giving you the ability to assign a variety of functions (including shortcuts) to the buttons, and adjust cursor and scrolling speed. Optical Tracking Technology Delivers 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 ...