The Kensington trackball legacy continues with the Orbit Wireless Trackball computer mouse in white. The trackball has a patented scroll ring which allows you to scroll up and down pages with ease, and features customisable buttons, dual wireless connectivity (2.4 GHz, Bluetooth 3.0 and LE) with 128-bit AES government-grade encryption security plus four DPI settings (400, 800, 1,200, or 1,600) to easily adjust the cursor speed to fit your needs. It also has a detachable wrist rest, ambidextrous design - for left or right handed users - and plug-and-play ease for Mac or PC.The four DPI settings let you adjust the cursor speed - selecting a lower DPI for precision editing, and higher DPI for word processing or casual browsing. the 40mm ball’s hard surface is specially designed as a perfect sphere for precise tracking and control. 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. A detachable wrist rest delivers soft cushioning to support the hand and wrist in ergonomic comfort for pain-free work or gaming during extended periods of activity on the computer.The popular choice of professionals everywhere - now wireless. Free KensingtonWorks downloadable software provides a personalised experience, giving you the ability to assign a variety of functions (including shortcuts) to the buttons and adjust cursor and scrolling speed.• Mac & PC compatible• Ambidextrous design• Plug-and-play• Dual wireless connectivity - 2.4GHz & Bluetooth (3.0 and LE)• 128-bit AES government-grade encryption security• 4 DPI settings (400, 800, 1,200, or 1,600)• Comes with detachable wrist restThe Professionals' Choice:Kensington is the global leader in laptop security locks and productivity accessories. IT leaders and office professionals trust Kensington to protect and connect their workspaces through their range of ergonomic accessories.