[Extremely powerful, 5-speed adjustable]: The Aucoofany Personal Mini Fan is equipped with a high-quality brushless motor and a 5-blade fan blade design that delivers powerful airflow. You can switch between 5 adjustable air speeds at the touch of a button. Whether you're working, sleeping or relaxing, you'll stay cool and comfortable. [Lightweight and portable]: This portable handheld fan is very small and lightweight, weighing less than a typical cell phone. You can easily put the mini fan into your pocket or handbag and take it anywhere. [Upgrade 12-Hours Long Lasting Life]: The handheld mini fan features an upgraded 3200mAh battery, offering 6–12 hours of use — more reliable than many similar products.