Labtec Optical Mouse 800 Product Description Labtec Optical Mouse 800 - mouse Device Type MouseConnectivity Technology Wired - NOTE: THIS PRODUCT CANNOT BE SHIPPED TO MASSACHUSETTS OR DISTRICT OF COLUMBIA (WASHINGTON, D.C.) Movement Detection Technology Optical -WARNING: The solder used in this product contains lead, a chemical known to the State of California to cause birth defects and other reproductive harm. Please wash hands after handling internal components and circuit boards and avoid inhalation of fumes if heating the solder. Movement Resolution 800 dpi Features Scrolling wheel Cables Included 1 x USB cable - integrated ? 1 x mouse adapter OS Required Microsoft Windows 98/ME/2000/XP