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)