[Raising up to 13000 RPM engine significantly increases the wind speed of the triple power release combination. The minimum wind speed already reaches 3.8 m/s under 7000 RPM. The maximum wind rate can reach 9 m/s below 13000 rpm, such as a mini blower. Even the lowest rotation speed is three times more than the normal fan, which makes the cooling time faster. .[ 2000mAH USB Rechargeable Fan] This Hand Type Mini Fan is completely charged in just 2.5 hours and provides up to 4 hours of cooling time when full charge. It also supports multiple charging methods and allows you to charge a normal USB socket, laptop, powerbank or vehicle charger. .[ Speed ​​speed makes 0-100 speed in 1 second] This cooling fan adopts up and down pushing design and the wind speed can be adjusted to gradually. fan can customize the speeds between 1 and 100 and meet your various wind power needs in each scene. Never deal with the feeling of very weak wind in the first gear or in the second gear in the first gear. .[ Premium Technology: Hot air turns into cold air] This personal fan has a turbine structure with a high power engine that quickly squeezes the hot air it draws and converts it into cold air blowing out. It allows you to quickly cool off on hot summer days. You will not feel very weak in the lowest class or you will not be a piercing in the highest class. .[ Noise was reduced by 20 %] Despite the strong refreshing wind, the noise was reduced by 20 %less than the traditional hand -type fan. .[ The mobile fan relieves the load] The net weight of this mini ventilator is only 185 g, it is easy to put it in your pocket and just occupy a small occupation, there is no load to take it out. A beautiful and useful fan for travel or city hiking. .[ The choice for gift] makes a unique gift for simple and stylish design, friends, boyfriends, girlfriends, mother and father. Practical gift always wins. .[ Excellent Customer Service] If you have any questions or concerns before or after your purchase, we are determined to you the possible experience and we will do more to ensure your satisfaction.