Features: Destroys Bacteria and Virus DNA or RNA Preventing Germ Reproduction Disinfects Keyboards, Mobile Phones, Books, Bottles, and MUCH MORE 9PC UV-C Supplied Sterilization (270nm to 280nm) 9PC UV-A Indicating Proper Functioning (375nm to 380nm) Built-In 2400mAh Rechargeable Li-Battery Guaranteed LED Lifespan of 9000 Hours Each Compact, Portable, Low-Maintenance Design Germicidal Effectiveness 99.9% Ozone- & Mercury-Free Environmentally Friendly Auto Shut-Off System 0 Second Preheat Voltage: USB 5V Current: 1A Max