General description A portable cool mist humidifier is an effective and simple way to take cool moisture with you wherever you go. This USB-powered humidifier can be plugged into a laptop, car, or any standard USB charging pad. It gently sprays moisture into the air without wetting the desktop, providing quick humidification. Additionally, it features a 7-color soft night light, making it ideal for bedroom use. Whether you're in a small space, an arid office, or traveling, this portable air humidifier offers gentle relief from dry air. Technical specifications Water tank volume: 230ml Operating voltage: 5V DC Rated power: 2W Product size: 76 x 76 x 135mm Spray volume: 20-40ml/h Sound volume: less than 36 dB