【5 in 1 Functionality】- Enjoy the convenience of four devices in one! This portable air cooler combines the functions of a mini air conditioner, humidifier, air purifier, table fan and night light. 【Portable Air Cooler with USB Port】Easy to carry. The small air conditioner can be used in combination with adapters, portable power supplies, computers, car chargers, etc. 【Large Water Tank】Equipped with a 680ml water tank, this portable mini air cooler can cool for 5-6 hours without frequent refilling. Transparent window allows you to better observe the water level. 【Efficient Cooling Technology】- Using advanced evaporative misting technology, this portable air conditioner consumes minimal energy while providing cool and refreshing air. With three adjustable fan speeds and three mist levels, 【Energy Saving & Low Noise】The indoor air conditioner can work efficiently at low noise, and there are 3 wind speeds to choose from. The powerful power supply and conversion circuit can minimize