Our Waterproof Antimicrobial Mouse with Magnetic Scroll Wheel is the ideal pointing device for the industrial, medical and maritime industries because it is 100 percent waterproof and offers unique washing capabilities to help eliminate germs and bacteria. The mouse also provides a unique scroll wheel design with four internal built-in magnets to prevent open spaces and add air-tight gaps which prevent any moisture or liquids accidentally getting inside the mouse. Connector/Port/Interface: USB 2.0; Left/Right Hand Use: Left/Right; Mouse Technology: Optical; Wired/Wireless: Wired.