Microsoft Wireless Optical Desktop 4000 (3.0) Silver PS2/USB Mac/Win

Built for comfort, designed for style. This stylish, ergonomic set looks as good as it feels, with a Comfort Curve Design keyboard and innovative zoom slider. Customizable "My Favorites" Keys provide one-touch access, and the Wireless Optical Mouse with Tilt Wheel allows you to scroll from side to side. Designed by ergonomic experts for enhanced comfort and style, the Comfort Curve Design keyboard helps your hands rest in a more natural position. Scroll every which way. Now you can scroll horizontally as well as vertically through documents and Web pages. The entire wheel tilts, acts as a button, and reacts smoothly to your speed. Finally, a solution to the top wireless hassle - now you can work longer without interruption. Many users experience a half year of battery life! Work wirelessly without intrusion. Take advantage of smart technology that automatically detects interference, so you don't have to worry about interruptions.