The Ultrasonic UV-C Jewelry Cleaner safely cleans and disinfects your phones, electronic devices, baby products, toothbrushes, dentures, jewelry, watch bands, coins, eyeglasses, tools, and more. The UV-C light adds an additional layer of protection. The UV-C Light and Ultrasonic settings can be controlled independently. Each setting is pre-programmed to automatically stop in 5 minutes.