彭烁
USB-powered rechargeable fans are generally small in size,
and the diameter of the fan blades is usually 3 to 6 inches, and the power is small.
Generally, they are powered by lithium batteries.
The rechargeable fan can be used for outdoor cooling, camping, power outage emergency,
temporary operations, mobile booths, school dormitories and other temporary places without power supply.
It is light and easy to carry.
