The device uses the ultraviolet germicidal irradiation (UVGI) technology to produce ultraviolet light Effectively kills up to 99.9% of germs, bacteria, mold and viruses, giving your child extra protection and helping him/her grow up healthySafe to use. If the cover is accidentally opened during operation, the built-in safety switch will automatically disable the deviceThe device has a small size and is powered by a built-in battery, which allows you to protect the health of your child both at home and during walks or trips. With its compact and portable design, the sterilizer can be easily fitted in any travel bag or backpack, or fixed to your handbag, diaper bag or stroller with the handy strap providedYou can disinfect soothers, bottle nipples and teethers anytime and anywhere