Motoraux Portable Mini Cool Mist Humidifier/Ultrasonic Air desktop Personal Humidifier with LED, Small Perfect for Travel, Home, Office or Car humidifiers with Water Bottle Light-weight Slim design: Portable for travel; fit for standard cup holders in the car, overflows-resistant; A must-have air desktop humidifier to refresh the dry air to alleviate dry eyes and dry throat. Relieves allergies, dryness, cold & flu symptoms anywhere, all year long! Hassle-free: Super easy to use. Just fill up the bottle with water, connect Motoraux Humidifier with any USB power source via the USB cable, and press the power switch. A full bottle of water is available to use for 8 hrs Safety-first: 5V/2W high power and low voltage are safe for kids; Auto turning off after continued 8-hr use. Auto power off without running dry when water in the bottle is run out. Then you just need to press to turn it on when you wanna use it Compatible Charging: there comes with a USB data cable. Applicable to connect with portable power source, laptop computer, and mobile phone charger, etc. Note: it has to be powered all the time when in use Stable mist-spraying, no wet on the desk. Whisper-Quiet Ultrasonic Operation, Incredibly silent in use: disturbance-free for your rest or sleep