KENSINGTON Wired Trackball Expert Mouse

Designed for PCs and Macs, the Expert Optical Trackball employs Kensington's DiamondEye optical technology for smooth, precise cursor movement. Surrounding the ball, is a Scroll Ring that puts scrolling right at your fingertips. Expert Optical Trackball even comes with a soft wrist rest-right.
Product Description: Kensington Expert Mouse - trackball - USB - black | Device Type: Trackball | Connectivity Technology: Wired - USB | Colour: Black | Orientation: Right and left-handed | Movement Detection Technology: Optical | Buttons Qty: 4 | Features: DiamondEye technology, removable wrist rest | OS Required: Microsoft Windows 7 or later, Apple MacOS X 10.8 or later, Google Chrome OS 44 or later | Microsoft Certification: Compatible with Windows 7 | Manufacturer Warranty: 3-year warranty