[Centrifugal air duct]: Lower wind resistance than the old direct-blowing fan, multiple cyclone compression speed superposition, completely crushing the old models on the market. [New same high density battery]: Equipped with the same new 21700 battery chip, strong performance, low power consumption, escort for your every trip. [Simulation of natural air pressure, air convection principle]: Accelerate the downward of cold air and mix with hot air, quickly take away excess heat, and achieve a rapid cooling effect. [Low-power -saving chip]: Stable and long-term output without pressure, built-in AI protection chip, every second counts, to safety. 89 mm compact body, easily fit into your pocket. Traditional bulky fans are large and heavy, like moving bricks, and they also take up space on the desktop. The seventh-generation mini fan can easily integrate into your life and say goodbye to the troubles of clutter and crowding.