The Microsoft Wireless Optical Notebook Mouse 4000 includes a compact receiver that snaps into the mouse when not in use, saving battery life. The new Magnifier lets you enlarge and edit detail, and the innovative Tilt Wheel enables four-way scrolling. With optical movement detection at 1000 dpi, you get precise, accurate tracking for all your program and application needs. The mouse fits comfortably in your hand, so you don't have to worry about cramping or pain even during long work, gaming, or creative sessions It's perfectly portable, capable of going anywhere with you and your notebook. It stores easily and works flawlessly each time you plug in the wireless receiver. It's compatible with both PCs and Macs, so you're free to work, play, and travel no matter which platform you use.

Microsoft Wireless Optical Notebook Mouse 4000