【MINI FAN AND AIR COOLER】Multiple devices in 1: mini air cooler, air humidifier, fan and LED night light. You can use it as a regular fan or as an air cooler by adding water and ice cubes. The built-in negative ion generator effectively purifies for healthy and fresh air. The emitted mist increases the humidity of the air and keeps the skin hydrated. 【USB POWERED COOLER】Designed to be easily taken anywhere, its USB port allows it to be charged from an outlet, power bank, computer, vehicle charger or other similar devices. This allows it to be used both at home and in the office as well as for outdoor trips and travel. Note: The data are all manually measured, please allow an error of 1-3 cm. Due to differences in light and display, there may be some color differences, please refer to the actual item received.