Features:The product is unique and fashionable.Intelligent control system, reliable performance, complete functions and easy to use.Professional portable fan with integrated design, simple appearance and sturdy structure.It takes about 3.5-4 hours to fully charge the product, and the circuit has overcharge, overcurrent, and overdischarge protection.Plug in the USB cable, the red light is on when charging, the red light is off, and the blue light is on when it is full.Press once for the first speed low, press again for high quality, and finally press closeproductSpecification: Battery Specification: 2000mAhPower output (MAX): 5WPackage:1x fan1x usb charging cable