The air circulation fan designed two years ago just saw it today. Please sort it out and share it. This portable circulation fan has: wireless operation, portable storage, clever assembly, changeable height, remote control and other functions, and has many innovative functions in the fan industry. The fine adjustment of 12 gears allows the wind speed to run strongly and delicately. The machine also has a built-in large-capacity lithium battery, which can last for more than 20 hours with full power, thus getting rid of the trouble of cable. The fan is also equipped with remote control, with magnetic attraction, which can be magnetically attracted to the front net of the fan, which is not easy to lose.