Mighty Mouse is a fully sealed IP 64 optical mouse that is a 2-button mouse. The Mighty Mouse is both USB and PS/2. This waterproof and chemical resistant mouse can be disinfected with a variety of liquids including alcohol, 10% bleach solutions, and CIDEX. The Mighty Mouse feels like a standard optical mouse. You can feel the mouse button click, but there are no openings so the mouse can be cleaned.