[High Speed Fan] This portable handheld fan is powered by a brushless motor, which greatly increases wind speed and power. The maximum wind speed is up to 9m/s. The maximum speed of the handheld fan is three times that of a normal personal fan, reaching 15,000 rpm [Stepless Adjustable Speed] This turbine fan wind speed can be adjusted steplessly: 1 to 100 levels of wind speed, to meet your home, office or any other scenarios in a variety of wind power needs [2000mAh USB Rechargeable] The handheld fan has a built-in 2000mAh battery and supports USB charging mode, no need to worry about the battery running out, you can easily charge it through your computer, rechargeable battery and other devices [Digital Display Design] The mini fan is equipped with a high definition digital display, which can show the current battery power remaining, you don't need to worry about the remaining power of the fan [Compact and Portable] Mini fan size is only 156x63x67mm, compact size, you can put it into