【Advanced Cooling Technology】 Unlike other portable air conditioners, our portable air conditioner uses ultrasonic misting technology to atomize the water molecules in the water tank into ultrafine particles, and then blows cool, moist air through the fan. There are also two misting modes to choose from, increasing humidity and keeping away dry skin, stuffy nose, and cough caused by dry summer air. 【USB Rechargeable Quiet Air Cooler】The hand strap design makes it easy to carry. Built-in 1800mAh rechargeable battery, supports up to 8 hours working time after fully charged, can be charged by any USB Type-C device. Bring mini portable air coolers to brave the hot weather. 【2 Wind Speeds & 2 Spray Levels】The portable air conditioner has 2 wind speeds and 2 spray levels to meet different needs. The highest wind speed reaches 2.8 m/s and the highest mist level reaches 8 ml/min. The stronger wind determines that this portable air conditioning unit can cool more space than other mini air