The structure of these fans is unique and fashionable.3 colors. 3-mode of wind speed and 1 mode of led light. German brushless DC motor,100% bare cooper to ensure the high winds and long-life. Intelligent control system, reliable performance, which is fully functional and easy operation. Using the international standard 18650 capacity lithium batteries, that can be recycled and low cost, more universal. A professional portable fan with integration of design, simple appearance and solid structure.