[Three-stage speed adjustable]: Hand-held fan (low/medium/high), three-stage speed adjustment can be carried out. You can change the wind force by tapping the power button, which is easy to operate. Three large fan blades can generate strong airflow, which can quickly remove heat from the surface of the body and quickly remove heat[USB charging and long-term use]: A small USB fan, with a large capacity battery of 1200mAh, runs for 2 to 6 hours according to the wind speed. Through the USB charging method, portable fans are compatible with USB ports, such as laptops, mobile power banks, wall-mounted chargers and car chargers. Can be charged anytime, anywhere[Lightweight and low noise]: The mini fan is only 0.4 pounds, light and portable, even if you hold it in your hand, you will not feel its presence. The operating noise of the cooler fan is less than 40db. It is made of high-quality copper brushless motor. The personal fan can produce a stronger, more stable and quieter wind.[Dual mode use & easy maintenance]: The small fan is installed on a simple base, which can be used not only by hand, but also on a desktop computer. In addition, the removable design of the mini fan can be cleaned by removing the fan cover by turning it counterclockwise.[Summer going out option]: Cooling fan in hot summer. You can put it in your bag when you go out. Especially suitable for summer travel and outdoor sports. You can take it anywhere, such as when traveling outdoors in your home office. The gift for kids, teenagers, adults, family and friends