This product arrives partially charged. Before use, charge completely. To charge product, use USB power adapter provided and insert charging pin into the circular indentation on the bottom of the product. Light will illuminate and flash while product is charging. When product is fully charged, light will stop flashing and remain illuminated. To turn on, push power button. Light will illuminate to indicate product is on and in standby mode. To cycle through speeds and pulsing patterns, push function button. To turn off, push power button. Light will turn off to indicate the product is off. To preserve battery life, ensure product is turned off when not in use. Wash before and after each use. For best results, use Cleansing Mist.