Features: 1. Spiral fan blades, poly wind turbine design, strong wind power, airflow concentration, 5 wind speed adjustable 2. Adjustable pitch angle, about 90 degrees can be manually adjusted 3. Soft sound operation, accelerate air circulation 4. Built-in large-capacity battery, easy to use, long life time 5. Removable front mesh cover, easy to clean the dust 6. Type-C charging interface, can be connected to a variety of equipment charging 7. One button operation, easy to use 8. Anti-slip pad on the bottom, increase the friction with the desktop, prevent sliding