BlueTrack Technology - Microsoft BlueTrack Technology combines the power of optical with the precision of laser for remarkable tracking on virtually any surface.
Comfort and durability - Rubber side grips and a contoured shape for either hand
Dust-resistant design allows you to track confidently.
5 Customisable Buttons - Reassign any button to fit your needs
Quick access to the media, programs, and files you use most often.
Tilt Wheel of easy horizontal and vertical scrolling.
3 Year Warranty
Windows 7, Windows Vista, Windows XP (excluding Windows XP 64-bit)
2 AA Alkaline Batteries required (included)