Designed for phones, keys, masks, and more, the Ultraviolet Sterilizer kills contaminants in just three minutes! Its two 2-bead LED UV lamps, the equivalent of 48 LED UV lamp beads sterilization intensity, remove contaminants from both sides. The blue light turns on after contents are placed inside. This portable sterilizer is easy to use and charges with USB.1. HEALTH FIRST - Items that we use everyday, such as cellphones, gather bacteria with each touch. Washing your hands is not enough to keep germs at bay - having thisstrong UVC phone sterilizer ensures that you are practicing health and safety, always. 2. EASY TO USE - Take it with you wherever you go. Simply plug in the charging port, place contents inside, and wait 3 minutes to kill 99.99% of germs.3. HIGH TECH - The UVC light is the wavelength in the range of 240 280nm of UV light, which can destroy the molecular structure of DNA or RNA in a harmful microorganism.4. COMPATIBLE - Use the sterilizer to clean cell phones up to 6.5", wireless earphones, travel toothbrush, watch, toys, pacifiers, keys, jewelry, makeup tools, and more.