Sleep: With a long working time of 10 hours - perfect to have on as you sleep. Humidifier: Get a 3L dual cool mist humidifier. Function: Helps moisten the air in your home to aid in easing nasal congestion and dry throats. Portable: Comes with a carry handle for easy travelling - take with you to the office or keep at home! Power: DC 5V inpout voltage, 2-5W power. Size: 23.1cm x 13.3cm x 13.2cm. 3L capacity. 3L Dual Cool Mist Humidifier | Living Social | Living Social