A handheld USB fan is a small, portable fan that can be powered by a USB connection. You can plug it into a USB port on devices like laptops, power banks, or even phone chargers. These fans are compact, lightweight, and designed for personal cooling, making them ideal for hot weather, commuting, or desk use. Some models are rechargeable, while others may be powered directly through the USB cable.
In summary, it's a convenient, portable way to stay cool on the go, using a USB power source.
