... 3 AAA battery or USB Smart UV Sterilizer, kill the colibacillus, hepatitis virus, mould and so ... about 9 minutes sterilizing time.3. Easy to use:co-site lid automatically timed boot disinfection ... and relatives care gifts.7. Nine minutes to kill germs and bacteria such as colibacillus, hepatitis virus ... 20pcs/ctn; 7.9KG/ctn Protable UV Sterilizer, kill the colibacillus, hepatitis virus and keep your baby ...