Specially Designed The Mighty Mouse is specially designed for use in medical, industrial and marine applications. The mouse is full sized and features a 5-button design for right & left clicking and scrolling up & down just like a conventional mouse. Compatible The Mighty Mouse is a fully sealed IP 68 and compatible with both USB and PS/2. Disinfectable This waterproof and chemical resistant mouse can be disinfected with standard cleaners and disinfectants, alcohol and even 10% bleach solution. - May be disinfected as part of an infection control program - Suitable for moist and dusty environments - Waterproof for easy cleaning - Built to last - limited lifetime warranty available - Three extra buttons for effortless scroll up, scroll down & scroll lock