Overview If you open the cover during the sterilization process, the sterilizer will automatically stop working. This product can effectively kill common bacteria such as escherichia coli, candida Albicans, staphylococcus aureus, etc. with high efficiency of 90%. There are two ultraviolet germicidal lamps, which are located at the two ends of the sterilizer. Suitable for disinfection for cell phones with 6.5in, underwear, mask, sock, makeup tools, watches, toothbrushes, jewelry, keys, etc. Press the 'three flat lines' button to start the ultraviolet sterilization, and after 5 minutes, the sterilization ends, and the indicator light stays bright during disinfection. Press the 'three-wave lines' button to start the aroma function, after 10 minutes, the aroma process ends, the indicator light will stay bright during the process. Note: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated the same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.