The Expert Mouse Wireless Trackball gives you the freedom to be hyper-productive without being limited by a USB cable. The trackball can be paired through Bluetooth® 4.0 LE to save a valuable USB port, or connected via USB nano receiver. KensingtonWorks™ software offers incredible customization, and optical tracking technology offers smooth, precise cursor control. Plus, our patented Scroll Ring lets you quickly scan up and down web pages or long documents. Add it all up and you get exceptional comfort and ease-of-use from the brand that has set the industry standard in trackballs for more than 30 years.

• DiamondEye Optical Tracking: Movement detection technology provides smooth, precise cursor control so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency; Scroll Ring and Large Ball: Spin the dial to move up and down web pages or documents with complete ease. The red ball has been specially designed with an absolute spherical, hard surface for precise tracking and control.
• Ambidextrous Design: Works equally well for both right-handed and left-handed users to get the most out of their trackball; Detachable Wrist Rest: Soft cushioning cradles the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer; SmartFit - Comfort Made Easy: This product is designed to comfortably fit users with average to larger sized hands.

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