Use the same high-speed three-phase,motor as the hair dryer,Low energy consumption and low noise, 10 times. The high-speed "small fan"is the first to use the similar motor and air duct design of the high-speed hair dryer. The high-speed airflow gushes out, bringing you an wind cooling experience. The duct based on the optimization of the aerodynamic system furtheireduces the vibration of the fuselage and the friction of the air duct. The highprecision fan blades effectively improve the dyamic balance stability, allowing the strong wind to gush out in a more efficient, powerful and low-noise manner. turbocharger air guide system,Powerful wind gathering and wide air flow. 19.5-hour long endurance,5000mAh endurance !