1. Lightweight and Portable Fan: It is a large portable size and not heavy to carry, the belt design frees your hands, suitable for traveling, hiking, camping, outdoor activities. 2. High-performance battery: The mini USB fan is powered by a built-in 14500 rechargeable lithium battery, charging for 2 - 3 hours, providing 2 - 4 hours of continuous use. This portable fan comes with a USB charging cable, you can charge it using a regular socket, computer, car charger or any other device with a USB port. 3. 3 Adjustable Speeds: The portable fan has 2 adjustable wind speeds, you can control the fan speed by repeatedly pressing the power button, the maximum rotation speed can reach 8200 rpm. The fan blows strong and long - lasting wind, so you can cool down and feel cool in the hot summer. 4. Foldable Portable Fan: This mini portable fan can be folded up to 180, it can be used as a portable fan outdoors or can be used as a mini desk fan on the desk in the office. Suitable for summer travel or outdoor sports. 5. Powerful Wind: Equipped with 5 fan blades, powerful enough to support the blade running at ultra - high speed. At high speed to create strong wind, this fan can create strong airflow and cool you down quickly.