solar hat clip fan mini desktop usb fan children's hat fan

Solar Hat Clamp Fan (Battery-Free)

Power source: Solar + DC5V (Please use a power source less than 1A)

Instructions: 1. Solar-powered: Turn on the switch, clip the device onto a hat, adjust the fan downward, and when sunlight hits the solar panel, the fan will start operating, blowing a gentle breeze onto your face.

2. DV5V: Insert the 3.5mm USB cable into the input hole, connect the USB to a computer, and the fan will start running immediately. It can be used as a desk fan; it can also be clipped onto a cap, and the fan is powered by a portable power bank.
Note: USB cable and portable power bank are required to be provided by yourself.