– Designed for Comfort Experience the ultimate in comfort made easy. Type more comfortably with low-profile Quiet Touch keys. The palm rest and removable feet create a slope for a more comfortable wrist posture. – Ergonomist-approved Comfort Curve design Microsoft’s Comfort Curve encourages natural wrist posture and is easy to use. – BlueTrack™ Technology Microsoft BlueTrack Technology combines the power of optical with the precision of laser for remarkable tracking on more surfaces*. – Taskbar Favorites for Windows® 7 Make everyday tasks easier with Taskbar Favorites for Windows® 7. Save time and access most used applications with one touch. – 2.4 GHz Reliable Wireless Microsoft 2.4 GHz wireless delivers a reliable connection with up to a 30-foot range, with virtually no interference. – Compact Design with Quiet Touch Keys Quiet, responsive,thin-profilekeys. – 4-Way Scrolling Scroll four ways for greater efficiency and comfort with Tilt Wheel Technology. – Media Center Control media playback from your keyboard.