Say goodbye to cold hands and frostbites with the innovative and versatile ActionHeat 5V Hand Warmer Muff. This comfortable and intuitive clothing comes with a 6000 mAh power bank that keeps your hands warm for up to seven hours even in the blistering cold. In addition to that, the power bank is also capable of charging small devices and accessories easily. The dual heating panels offer ample warmth to the front and back of the hands to keep them toasty for up to 115F. There are three different heat settings that allow you to swap between different temperatures to provide you with the optimal warmth you require. This can be achieved with the simple touch button controls present on this hand warmer. Best of all, this muff comes with an adjustable waist belt for hands-free carrying.