À about this article 【4-in-1 mini portable air conditioner】This 4-in-1 air cooler can be used as an air conditioner cooler/fan/humidifier for rapid cooling to meet your ventilation needs. It has 3 adjustable high wind speed levels. Our portable air conditioner is small and USB powered, making it perfect for use in the bedroom, office, or outdoors for personal cooling and comfort! 【Rapid cooling at high wind speed】 This practical air cooler is specially designed for high wind speed. With 3 speed settings of low, medium, and high, it only takes 3 seconds to cool down. The fan is designed with an adjustment shaft that can rotate 360°, so you can adjust the air direction as needed. Double grille design, safe operation and prevents finger injuries. 【250 ml water tank】The mini portable air conditioner has a 250ml water tank. The removable water tank cover is easy to fill with water, and ice cubes can be added at the same time. Adding ice cubes has a better cooling effect. This portable air