Eliminates 99.99% of bacteria & viruses from pacifiers, bottle nipples, teethers, small baby items and more at home or on-the-go! 99.99% efficacy is backed by rigorous testing through multiple independent labs Safely eliminates most common household germs. Child safe UV light auto shuts-off when lid is opened. Smell the clean! Removes odor causing bacteria and sterilizes without using harmful chemicals. Note: This device has been tested and does not emit ozone 4 Long-Lasting Gold LED beads (instead of mercury bulbs) Powered via 3 AA batteries (not included) or USB wall socket (USB cable included). The USB cable powers the device, but does not charge the device. For on-the-go, use 3 AA batteries or connect USB cable to a portable power bank, car charger or laptop