Kensington - Pro Fit™ Ergo TB550 Trackball - Optical - Wireless - Bluetooth/Radio Frequency - 2.40 GHz - Wireless - White

Customizable Finger Trackball Mouse, 55mm Center Ball, 7 Programmable Buttons, 4 Onboard Profiles, Browser-Based Configuration, Static Bearing & Tri-Mode Connectivity

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 & 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. More from the Manufacturer

Kensington Pro Fit TB550 Mouse - Optical - Wireless - Bluetooth - 2.40 GHz - Rechargeable - 1600 dpi - Trackball, Scroll Wheel - 7 Programmable Button(s) - 1 Each