Our cold fog humidifier is cordless. It can be charged through USB and can be used for 10 hours after charging. You can take it anywhere and enjoy a cordless life. Capacity 300ML, easy to carry : Liquid water mist is transformed into micrometer sized water particles through ultrasonic vibration. Use 300ml volume and fine spray to increase air humidity. It is a good companion for air-conditioned rooms. And it is easy to carry to the office or home. [Two spray modes] Our cold fog humidifier includes two spray modes: continuous spray and intermittent spray. Firstly, press the atomization button once to start the continuous atomization mode; Press the atomization button for the second time to switch to intermittent mode. With LED colored night light : Three LED light modes, long press for 3 seconds to switch atmosphere lights freely, color rotation, fixed color