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® LE to save a valuable USB port, or connected via USB nano receiver. KensingtonWorks™...

The Expert Mouse® Wired Trackball is the ultimate productivity enhancer that makes working at the desk quicker, more accurate and extremely comfortable for your hand and wrist. Featuring DiamondEye™ technology, the trackball uses optical tracking to precisely follow small flecks...