Kensington Orbit Wireless Trackball with Scroll Ring - Black - Optical - Wireless - Bluetooth - 2.40 GHz - Black, Red - 1600 dpi - Scroll Ring, Scroll Ball - Symmetrical

Kensington Orbit Wireless Trackball Mouse with Scroll Ring: The Kensington trackball legacy continues with this latest addition. Spin the dial to move up and down web pages or documents with complete ease. The 40mm balls hard surface is specially designed as a perfect sphere for precise tracking and control. The ambidextrous design works equally well for right-handed and left-handed users, while the trackball reduces wrist and hand movement to ease repetitive-stress injuries. Includes a detachable wrist rest which provides additional soft cushioning support for the hand and wrist.

Easily adjust the cursor speed to fit your needs by selecting the appropriate DPI level (400, 800, 1,200, or 1,600) lower DPI for precision editing, and higher DPI for word processing or casual browsing. The Optical Tracking Technology delivers precise cursor movement for superior accuracy. This allows you to get where you want on the screen quickly with less hand movement, improving productivity and efficiency.

The Kensington Orbit Wireless Trackball Mouse with Scroll Ring features the flexibility of dual wireless 2.4 GHz and Bluetooth (3.0 and LE), with 128-bit AES Encryption Security government-grade encryption. Compatible with KensingtonWorks, a free downloadable software which 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.

Comes with a 2.4GHz Wireless Nano Receiver stored inside the trackball for safekeeping.