Kensington Si750m Wireless Notebook Laser Mouse for PC or Mac K72269US Product Description Kensington Si750m Wireless Notebook Laser Mouse - mouse Device Type MouseConnect Wireless Receiver USB wireless receiver - 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 Detection Technology Laser Features Scrolling wheel, rubber side grips, battery indicator Battery 1 x AA type Manufacturer Warranty 1 year warranty Device Type Mouse Wireless Receiver USB wireless receiver - NOTE: THIS PRODUCT CANNOT BE SHIPPED TO MASSACHUSETTS OR DISTRICT OF COLUMBIA (WASHINGTON, D.C.)