Home & decor Home & Decor Portable Sterilize UV Scanner Germ Disinfector Harmless to human body Portable UV disinfector destroys 99.9% of all bacteria and viruses in seconds including hepatitis influenza and many others UV light turns on when unit is flipped open and sterilizes as you pass it over surfaces Sterilizing dishware baby bottles toothbrushes telephone or cell phones personal articles public goods computer keypads and mice childcare's toys cash registers office equipment auto interiors lock handles and certain parts of public restrooms really any surface you can imagine can be sterilized safely. Uses 4 AAA batteries (not included)