1. Durable: The portable handheld fan has a built-in durable brushless motor and adopts a non-folding handle design to prevent the handle from breaking, which is a common defect of most folding portable fans.2. High-performance battery: The battery fan is powered by 800mAh high-quality rechargeable batteries with high performance and high efficiency. Compared with other batteries of the same capacity, our batteries have a 20% longer running time. You can carry this handheld mini hand-cranked fan for walking, shopping or other outdoor activities without worrying about battery problems.3. Controllable wind speed: The wind speed has three adjustable gears, which can control the slow, medium and fast wind volume according to different needs.4. Work while charging: Get power from USB devices such as charging boards, computers, notebooks, USB chargers, etc. The handheld portable fan can continue to work when it is connected to the power supply. It can become an ordinary desktop fan and it takes 2 hours to fully charge.5. Portable size: The portable fan weighs about 140g, which is convenient to carry and store. It is also an ideal handheld fan for travel camping in hot and humid summer, and can be used as a gift for children, women and friends. It is very suitable for Disney, travel and drying eyelashes.