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 incredible wind cooling experience. Use the same high-speed three-phase,motor as the hair dryer,Low energy consumption and low noise,Speed up 10 times. Vortex turbocharger air guide system,Powerful wind gathering and wide air flow. The new air 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 effectively improve the dyamic balance stability, allowing the strong wind to gush out in a more efficient, powerful and low-noise manner. 19.5-hour long endurance,5000mAh endurance maniac! Colour:Blue/Gray Material:ABS Package Contents: 1 x Rechargeable Air Cooling Fan 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.