Humidification function: The humidification function helps avoid dryness in the hot summer. With a built-in nozzle, add water and turn on humidification mode, this evaporative air cooler will create a cool, moist breeze for you. Equipped with 3 levels of humidification adjustment to help you customize your comfort level. Night light mode: The portable air conditioner has 7 different soft lights built in. The colors change automatically or manually in sequence, like a rainbow, giving you endless fun and adding another cute piece to your lovely home decor. Perfect for bedside tables and baby's room nightstands, bringing you a breeze and making it easy to care for your baby. USB power supply: This personal air cooler works via USB power supply and supports multiple power supply methods to power on, such as mobile power, computer, car charger, power plug, etc. Whether you're at home, office, patio or coffee shop, it's easy to connect anytime, anywhere. Easy to carry: This mini air conditioner comes with a leather carry strap, it is not only for use at home, but also perfect for going out, camping, etc. It's easy to carry around and enjoy the cool anywhere, anytime