Evaporative Cooling Technology: The portable air cooler draws in hot air, quickly cools it down through water evaporative cooling, provides humidified and cool air for your personal space, adjustable multi-directional air outlet design, if you add ice water, it will effectively cools the hot air around you. 3-Block Wind Speed Adjustment: 4-in-1 multifunctional design, not only a cute air cooler, but also a mini fan, humidifier, LED decorative lights, colorful circulating atmosphere lights can easily find it at night, the cooling effect is remarkable, which can help you sleep better. Portable and Quiet: This mini air conditioner fan is designed to be lightweight and does not take up space, it can be easily carried, suitable for home, office, outdoor picnic, camping, etc. It is very quiet (≤40db), even if you are reading in the library, you don't have to worry about the sound disturbing you and the people next to you. Energy Saving & Power Saving A+++: Does not contain harmful refrigerants and does not use a compressor like traditional energy-consuming air conditioners, this small air cooler works for you with a rated power of 3W, which is very energy-saving compared to window air conditioners. electricity while protecting your family's health.