With a usb charging buckle, the mini fan adopts a usb charging design, it can be charged through a computer, mobile power supply, and other devices for more convenient use. The bottom of the fan adopts a hanging buckle design, which can be carried or hung on a school backpack, and it does not occupy the space of the school backpack, making it more convenient to use. The handheld fan can be connected to a power source by connecting to a usb power plug, and adjusted on/off by pressing the button on the fan off in the process of using it, you can switch between different wind speed gears by briefly pressing the power button to meet your needs. Price for 5,000 pcs and over is for sea shipment. We are always online.