Kensington Orbit Wireless Trackball with Scroll Ring – Black-Red (K70990WW),

The Kensington trackball legacy continues with the latest addition to the patented Orbit Trackball with Scroll Ring — the Orbit Wireless Trackball with Scroll Ring. You asked for wireless, and we delivered, with the same great features that have made the Orbit Trackball with Scroll Ring so popular, including a patented scroll ring that allows you to scroll up and down pages with ease; customizable buttons; dual wireless connectivity offering the flexibility of 2.4 GHz and Bluetooth (3.0 and LE), with 128-bit AES government-grade encryption security; four DPI settings (400, 800, 1,200, or 1,600) that let you easily adjust the cursor speed to fit your needs; a detachable wrist rest; ambidextrous design; and plug-and-play ease for Mac or PC.
Dual wireless connectivity offers the flexibility of 2.4 GHz and Bluetooth LE, with 128-bit AES government-grade encryption security
The scroll ring lets you spin the dial to move up and down web pages or documents with complete ease. And the 40mm ball’s hard surface is specially designed as a perfect sphere for precise tracking and control
Four DPI settings let you easily adjust the cursor speed to fit your needs by selecting the appropriate level (400, 800, 1,200, or 1,600) — lower DPI for precision editing, and higher DPI for word processing or casual browsing
Ambidextrous design works equally well for right-handed and left-handed users. Trackball reduces wrist and hand movement to ease repetitive-stress injuries
Free *KensingtonWorks 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. *Windows ARM-based computers are currently not supported. Please check back for future updates on compatibility