From the Manufacturer
This wireless optical mouse offers High Definition technology for unprecedented tracking precision. The new Magnifier lets users enlarge and edit detail, and the innovative Tilt Wheel enables four-way scrolling.
High Definition Optical technology: Microsoft High Definition Optical mouse products are more precise, more responsive, and deliver smoother tracking.
Wireless freedom: Experience the ease and convenience that wireless keyboards and mouse products offer, and say good-bye to tangled cords and clutter.
Magnifier: Point and click to enlarge and edit detail.
Tilt Wheel technology: The entire wheel tilts to deliver smooth, accurate performance as you scroll horizontally and vertically through documents and Web pages.
Smart Receiver: Work wirelessly without bothersome interference. Smart technology automatically notifies you when interference is present, and then helps you reduce it.
Ergonomic design: Work comfortably, work safely. Point and click in comfortergonomic design helps you work longer without discomfort.
Longer battery life: Get more done without disruption. Work with less interruption with 6+ months of battery life.