1. Made of high quality materials, sturdy and 2. Strong wind speed: This mini turbo fan has a stylish design, excellent structure and strong performance, with a wind speed of over 52m/s. 3. QUIET OPERATION WITH POWERFUL AIRFLOW: This turbo-powerful fan uses large blades precision machined with CNC technology to provide strong airflow while running quietly. Enjoy the refreshing breeze with no noise. 4. Long-lasting battery life: The small fan has eight built-in 21700 power batteries, each with a capacity of 4000mAh. It has excellent battery life, with a battery life of 15 minutes at maximum wind speed when fully . 5. Convenient and Portable Pocket Fan: This pocket hair dryer is compact and easy to carry, making it perfect for use . Fan speed is infinitely adjustable from slow to medium, providing customization for any desired airflow. Gear position:infinite speed adjustment Speed:60000RPM Duct:64 mm The distance is 10 cm and the weight is 3 catties. ESC, 21700 battery 4000mAh, 8-cell,