1. This turbofan has simple design, reasonable structure, strong performance, wind speed of 45m/S, speed of 110000RPM 2. Built-in 2 large batteries of 21700 type (the capacity of a single battery is 4000MaH), the battery life is longer than 18650 3. 30A current governor, low heat; Supports the type-c fast charge protocol. 4. Support stepless speed regulation function, can adjust any wind speed, and hold to start, release the button to stop 5. Better practicality and use scenarios Notice: 1. The fan has a large power, pay attention to heat when running at full speed for a long time. After the temperature of the fuselage rises, pay attention to rest or 2. Charge and discharge in a ventilated place, no combustible materials around, timely charge when the wind speed is significantly reduced 3. The shell is 3D printed, manual DIY, slight defects are normal. 4. The two sides of the host are magnetic, and they need to be installed on different ports when using different accessories.