Whether you are sitting at your computer desktop or on the go with your laptop, USB footwarmers keep your feet warm and toasty. Instant plug and use. Compatible with PC, Mac, and most USB enabled devises. Convenient for office or personal use.
Two Detachable USB Powered Footwarmers
One Size Fits Most Foot
For laptop or desktop USB port use only, use on other kind of USB port such as keyboard USB port will not supply enough power to heat up.