- Handheld mini air conditioner fan: A versatile USB portable cooling fan designed for home, office, school, travel, camping, hiking, and other outdoor activities. High-quality construction ensures durability. - Rechargeable lithium battery: Enjoy cooling anywhere, anytime with the built-in rechargeable battery. Alternatively, connect the included USB charging cable to a computer, laptop, car charger, power bank, or 5V wall USB charger for continuous use. Ideal for beating the heat during long summer days. - Convenient design: Features a built-in T-shaped bracket for stable tabletop use and comes with an exclusive lanyard for hands-free portability. Its small, compact size makes it easy to fit in pockets, handbags, or backpacks. - Dual functionality: This fan combines cooling and air conditioning modes to lower temperatures by 3-5 degrees. The water cooling sponge requires occasional wetting (ensure water does not overflow) to effectively produce a refreshing breeze infused with water vapor. For added relaxation, a few drops of essential oil can be applied to the sponge, transforming it into an aromatherapy humidifier. - Practical applications: Use it in your office during hot workdays, take it along on outdoor adventures to stay cool, or enjoy it while reading at home. This mini air conditioner fan offers a practical solution to combat heat while providing versatility and convenience for everyday use.