About USB Hand Warmers
Keep your hands warm during outdoor recreation and work in even the coldest months with a USB hand warmer. A USB hand warmer is a small, electronically-operated heating pad designed to fit into the palm of your hand. It warms up to a comfortable temperature range of 35 to 45 degrees by plugging into any USB device via a USB cable, taking as little as three minutes with some designs. A USB hand warmer can come as a separate hand warmer that you then wear inside a glove or be already integrated into a glove. You can find new and used options on eBay. Look for quality selections of USB hand warmers from Top-rated sellers as well as offers of free shipping.