TheActionheat electric hand warmer is a handy heat-packing device that can make your life more comfortable. This rechargeable hand warmer, made of high-quality casing, is perfect to keep you warm on the go. While being light, convenient, and easy to use, this Actionheat Hand Warmer also acts as a portable battery charger for your USB-powered devices. Built with high-quality casing, this stylish rechargeable hand warmer will provide smooth and even heat all throughout the hand warmer to keep your hands and fingers warm. The user-friendly button is designed to make it easy to turn on and off and check the battery life, so there is no guessing, just warmth.