Application: Use as a portable diffuser, car air refresher, purifier or humidifier, suit for home, office, car, living room.Great night light for young children scared of the dark at bedtime, the colorful lighting creates a nice ambiance. Using Time: Automatic shutdown function, 4 hours line shutdown time for constant spray, 6 hours for spray interval. New ultrasonic technology supports an extremely quiet working noise <30 dB. Ultrasonic Atomization Technology: With ultrasonic high-frequency atomization, it can keep the air moist, moisturize the skin, and reduce radiation, you will not be disturbed when work or rest. USB Powered: 5V 1A micro USB powered, compatible with any device with USB port such as laptop, desktop, power bank, socket, power socket.Humidifier automatically shut-off when the water level is low or 4 hours automatic power-off protection. Adjustable Spray: 2 kinds of adjustable spray, press once for constant spray, twice for spray interval.Press the button to shift color, long-press the button to turn off the light without affecting the mist.