[Lightweight and Portable Fan] - The size of the handheld fan is about 5.7 x 2.76 x 1.78, and the weight is 0.2Ib, very portable, not heavy to carry, the lanyard design frees your hands, very suitable for travel, hiking, camping, outdoor activities. [High Performance Battery] - The mini USB fan is powered by a built-in rechargeable 14500 lithium battery, charging for 2-3 hours provides 2-4 hours of continuous use. This handheld fan comes with a USB charging cable, you can charge it through a normal outlet, computer, car charger or any other device that has a USB port. [3 Adjustable Speeds] - The handheld fan has 2 adjustable speeds, you can control the fan speed by repeatedly pressing the power button, the maximum speed can reach 8200RPM, the mini fan has strong and long-lasting wind, which can keep you in the hot summer Cool and comfortable. [Foldable Handheld Fan] - This mini portable fan can be folded up to 180 degrees, can be used as a handheld fan when outdoors, or as a mini desktop fan on your desk when you are in the office. Suitable for summer travel or outdoor sports. [Strong Wind]- Equipped with 5 fan blades, enough to support the blades to operate at super high speed to generate strong wind, this fan can generate strong airflow and cool you down quickly.