Anpress&reg; Mini Crystal Symphony LED Night Light Ultrasonic Humidifier Aroma USB Humidifier Desktop Light Mist Maker (Blue) Good stream of water steam to freshen the air to ensure your ability to breathe more comfortable 360 degree mist nozzle ,it's perfectly sized for a desktop, tabletop, nightstand,office,bedroom,dorm,or cubicle Mini size that conveniently sits on a desk or dresser or counter. Attractive glow in the dark,the night light helps you easily see the product in a dark room The humidifier will automatically power off after continuously working 3 hours to prevent causing over-damp in the room, while still working as a night lamp with the light on Easy to get power supply: the power supply port is a standard 5V USB port. It can be plugged in a computer, a home or car USB charger or a portable power bank.