①, Applications It can kill different kinds of bacteria and viruses in a very short time. Can use for mobile phone, mask, computer keyboard, accessories, rings, necklace, brush, plush toys, baby products, nursing bottle, clothing, underwear, bags, travels, and any articles that required sterilization. ②, Product Diagram ③, Operation Steps 1, Remove battery cover and place 4pcs “AAA" batteries into the sterilizer. 2, Long press the On/off switch for 3 seconds, then the UV lamp will be turn on.