* Get superior tracking power
Microsoft® High Definition Optical mouse products are more precise, more responsive, and deliver smoother tracking.
* Scroll side to side
Scroll four ways for greater efficiency and comfort with 4-Way Scrolling.
* Work in comfort with either hand
Use your mouse with your left or right hand-ambidextrous design makes it comfortable either way.
* Save time with one-touch access
Get quick access to the media, programs, and files you use most often with customizable buttons.
* Computer/Operating System
One of the following:
Windows XP Professional or Home Edition
Media Center Edition
Tablet PC Edition
* with a Pentium 233 MHz or higher processor and 128MB of RAM