If you need to take off your gloves frequently in outdoor hunting, fishing, golf, photography and other occasions, this hand warmer can solve your problem very well. Its advantage is that it is as convenient as a pocket and can be used at any time Can provide you with warmth. Features: This hand muff is a must have during winter. They keep your hands nice and warm even on the coldest days. The elastic cuffs can wrap the wrist tightly and prevent cold wind from entering the cuffs. Keep you warm during cold outdoor activities. The heating hand warmers has a front pocket to store power bank and a back pocket to store your phone. The hand muff comes with a USB port which can be used with a power bank to heat. 3 heating mode for you to suits your outdoor needs. This hand warmer is suitable for various outdoor and indoor activities, such as camping, hiking, skiing, riding, walking, fishing, hunting, climbing, and other winter sports. Specifications: Material: Polyester pongee + flannel Size: 51*19cm/ 20*7.5in Weight: 10.6oz Package List: 1 * hand muff