【Strong Wind & 5 Adjustable Speeds】: This mini handheld fan has great power to generate strong airflow. The portable fan has 5 wind speeds that adapt to your preferences in different environments, just press the button to change. 【Super Long Cooling Time】: The portable handheld fan has a large-capacity rechargeable battery: 1 wind speed can work for 20 hours / 2 wind speeds can work for 15 hours / 3 wind speeds can work for 10 hours / 4 wind speeds can work for 8 hours / 5 wind speeds (recirculating wind) can work for 10 hours. Maximum cooling time is maintained during indoor or outdoor activities. Portable Fan: The small personal fan measures 18 x 8 x 3.5 x 3.5 cm. You can put it in your bag, making it incredibly convenient to carry. The small handheld fan comes with a Type-C charging cable, whether indoors or outdoors, you can charge it via USB port (laptop, car charger, power bank, power bank) and only takes 3 hours to fully charge. The matching hanging rope and foldable mini fan