Microsoft Wireless Mobile Mouse 4000 for PC/Laptop/Desktop

BlueTrack Technology
Take advantage of BlueTrack Technology, which combines the power of optical with the precision of laser for remarkable tracking on virtually any surface
Highly Accurate
Use a mouse with BlueTrack Technology that outperforms laser and optical mice. The large, blue beam, combined with an image sensor and pixel geometry designed by Microsoft, generates a high-contrast picture of the surface that allows exceptional tracking accuracy
Track On Just About Anything
Navigate your computer by using a BlueTrack Technology mouse on a picnic table, your living room floor, the armrest of a lobby chair, or even your pant leg. With BlueTrack Technology, you can use the mouse on almost any type of surface
Stronger Sensitivity
See that blue light coming from under the mouse? The BlueTrack Technology light beam is more than four times larger than the average laser beam used in other laser mice, so you can point, click, and scroll with precision, no matter where you are. BlueTrack Technology does not work on clear glass or mirrored surfaces.
Plug-And-Go Nano Transceiver
Leave the Nano Transceiver plugged in when you're on the go, or stow it in the mouse
Reliable 2.4 -GHz Wireless
Enjoy the 2.4 -gigahertz (GHz) wireless technology, which delivers a reliable connection with up to a 15-foot range, with virtually no interference
10-Month Battery Life
Use your mouse for up to 10 months without having to change batteries. Battery status indicator tells you when battery power is low
Flip 3D in Windows 7
Easily switch between open windows with the click of a button
Four-Way Scrolling
Scroll four ways for greater efficiency and comfort with Tilt Wheel Technology.
Customizable Buttons
Get quick access to the media, programs, and files you use most often