Mini Humidifier, 280ml Small Cool Mist USB Personal Ultrasonic Humidifiers with 7-Color Led Lights Changing For Bedroom Home Office Travel(Blue) Quiet Operation for Bed: Ultrasonic humidifiers are incredibly silent, reduces noise to 29dB; perfect for your baby and a disturbance-free sleep at night Easy Use & Refilling: Simply tip the touch button to choose from continue Intermittent mist.Refilling has never been easier, simply pour water in the small insert at the top of the unit Multi-function Humidifier: The exclusive warm night light design suitable for office, reading and bedroon using; A small fan gives you an unprecedented refreshing experience when working in a dry air-conditioned room; and give you comfortable humidifier experience 7 colors LED night light/car humidifier: 7 colors LED night light will give you more choice to find your favorite color. Just plug it into the micro-USB port, it can purify the air inside the car and prevent static electricity and dust, reliving dry nose and throat. You can take it for business trips and travels. Safe Protection and Auto-off: This desk portable humidifier holds 280ml of water and can last about 5-10 hours. A water level window helps you check the water capacity. Once the water runs out, it will be auto shut-off to protect the device.