Evaporative Cooling Technology: The portable air cooler draws in hot air and quickly cools it with water evaporative cooling, delivering cool, humid air to your personal space, designed The outlet The multi-directional airflow can be adjusted and is effective if chilled water is added. Cool the hot air around you. <br> <br>3 Wind Speed Adjustment: 4 in 1 multifunctional design, not only a beautiful air cooler, but also a mini fan, humidifier, LED decorative light, air light ; highlighting the colorful atmosphere Find it easily at night, it has a cooling effect and can help you sleep better. <br> <br> Portable and Quiet: This mini air conditioner fan has a lightweight design, does not take up space and can be easily carried, suitable for home, office, outdoor picnic, camping , etc. it is quiet (40db), even if you play in the library, you don't have to worry about the sound disturbing you and the people next to you. <br> <br> Energy Saving & A+++ Energy Saving: Contains no harmful refrigerants and doesn't use a compressor like traditional power-hungry air conditioners, this small air cooler can work for you at its rated power 3W, very energy efficient compared to window air. Air conditioning while protecting your family's health. <br> <br>Built-in 3600mAh lithium battery: The battery has a long service life, which is different from the traditional way of plugging and unplugging cooling fans. When you fully charge the fan with the USB cable Water cooling is adopted, and the water tank capacity of 3600mAh can provide power for a whole day (24H). Product size: 166x152x145mm