The distinctive moon shape design doesn?t just spread light around your room but is a personal humidifier, moisturizer, ionizer & aroma diffuser for Aromatherapy. Connect a USB cord with the mist button. Press the metal head for continuous spray mode of 10 hours for the first time and intermittent spray mode of 4 hours for the second time. Ionize the essential water into the air to moisturize the air around and your skin and to reduce the radiation. Super soft air and warm light will give you a sound sleep.