Click here for OEM eligibility guidelines The innovative, ergonomic design uses soft-touch materials and maintains the hand in its relaxed and natural position, delivering hours of productive, strain-free computing — even promoting better posture! This stylish, 5-button wireless mouse also offers a Tilt Wheel for smooth 4-way scrolling, Instant Viewer to display all open windows at the touch of a button, and a Magnifier that makes it easy to enlarge and edit screen details. Instant Viewer - Press down on the Tilt Wheel to instantly display all open windows on your screen, then point and click to select the one you want, or compare two of the windows. 4-Way Scrolling - Use the Tilt Wheel to easily and effi ciently scroll side to side as well as up and down in worksheets, Web pages, photos, and more. Magnifier - Just point and press the Magnifi er button to enlarge and edit details. 5 Customizable Buttons - Reassign any button to fi t your needs. Battery Status Indicator - Flashes when batteries need replacement (Many users average more than six months of battery life) Microsoft High Defi nition Laser Mouse Technology - Two generations ahead of standard optical and laser mouse products (Standard optical technology = mouse products with 0.35 microns or older CMOS technology) More Responsive - 1000 dpi More Precise - 6000 FPS, 85 MOPS, 0.18 Microns or smaller CMOS Smoother Tracking - Microsoft Intelligent Tracking System<p>.