Kensington K70315Ww Pro Fit Washable Wired Mouse - The Pro Fit Wired Washable Mouse, With Its Waterproof, Easy-Clean, Rugged Design, Is Ideal For Maintaining A Hygienic Surface And Cleaning Up Drips And Spills, Without Sacrificing Performance. Comfortable For Use With Either Hand, The Wired Usb Connection Delivers Reliable Performance Without The Need For Batteries. Plug-And-Play, So There?S No Software To Download And Install. A Perfect Companion To The Kensington Pro Fit Wired Washable Keyboard (Sku# K64407Us). Do Not Immerse The Usb Connector.