Home, gym, campus, office, quick stop for e-mail and coffee. This sporty, stylish little mouse goes wherever you do. It's BlueTrack Technology combines the power of optical with the precision of laser for remarkable tracking on virtually any surface.
Customer Reviews of Microsoft Wireless Mobile Mouse 4000 - USB - 4 x Button - Blue
Best wireless mouse6/18/2012
Best wireless mouse I have found for travel and desktop use. Comfortable grip and button locations. BlueTrack optics can be used on any hard surface, and even works well on armchair or pantleg when really taking it easy. Battery life is excellent. Great buy.
I own 5 wireless mice and this is the worst of the bunch. The tracking is terrible compared to the others. Don't believe what you hear about the blue-track stuff. This mouse performs horribly on almost any surface that isn't a mousepad. On a positive note the mouse is larger which is nice, and is very comfortable in the hand. The problem is the tracking. It skips all over the place. If you're going to use the mouse on a mousepad everytime, you should be good to go