We may call it a mouse, but the Kensington Expert Mouse® is so much more. It employs our DiamondEye optical technology for smooth and precise cursor control. Surrounding the ball, is an award Scroll Ring® that puts scrolling right at your fingertips letti

- Large 55mm ball for maximum precision, control and comfort
- Save time and increase productivity with the award winning click free Scroll Ring®
- Optical DiamondEye technology delivers superior precision
- Four customizable buttons with Kensington TrackballWorks™ software
- Stationary trackball design optimises desk space when compared to a mouse
- Ambidextrous design for left or right-handed users
- Wired 180cm USB cable provides reliability and avoids need for batteries
- Detachable wrist rest cradles hand in comfort
- PC and Mac® compatible
- System requirements: PC running Windows 98 or later with an available USB or PS2 port.
- Mac® running OS X or later with an available USB Port.
- Internet connections or CD ROM drives to install the software.
- Compatible with Windows®7, Windows® XP.