4 IN 1 FUNCTION - It is mini desk fan, small evaporative air cooler, portable air conditioner and cool mist humidifier. There are 3 wind speed (low, middle, high). Built-in 2 fans make it more powerful. Come with 480ml water tank and designed with humidification function. You can fill it with cold water to increase the humidity and add ice in it to make it more like ac. Mini evaporative air cooler blows cool air soon and keep you cool within a few seconds.. 480ML WATER TANK - Amzdeal portable air conditioner comes with 480 ml water tank and adopts ultrasonic atomizer, which makes it work like cool mist humidifier. Also, it can be added essential oil. In hot and dry weather, small evaporative air cooler not only blows cold wind, but also improve humidity. Gives you cool environment. 7 COLORS NIGHT LIGHT - There are 7 colors night light for portable air conditioner, which makes it more beautiful at night. You can set it to any color you like or have it keep switching between colors. Also, if you don’t like it, you can turn it off.. PPORTABLE & SMALL - The size of mini evaporative air cooler is 10.3×5.1×5.1 inch. It is personal portable air conditioner. Will not cool down an entire room. But it would be good for your desk if you work in the office WARM SATISFIED SERVICE - Amzdeal always offers warm and satisfied customer service. If you have any questions, feel free to contact us please. We strive to make our customers 100% satisfied