Sold as 1 Each. 360º sterilization eliminates 99.9% of germs and bacteria. Lightweight and portable. Includes micro USB cable. WARNING:This product can expose you to chemicals including Acrylonitrile,Butadiene and Styrene,which are known to the State of Califonia to cause cancer and birth defects or other reproductive harm.For more information go to www.P65Warnings.ca.gov. 1 key operation. ideal for home, office, or travel. 3 modes: soft, medium, and powerful sterilization. Compact and fashionable. High-quality UV lamp protects health by sanitizing items including phones, earrings, watches, masks, and more. Light wavelength: 253.7 nm.