Features: 1Power: The USB interface in the zipper pocket of our hot waist bag works with a 5V, 2A power bank to generate heat and keep your hands warm. 2Adjustable: The 3 heating levels of our heat waist bag with LED indicators can be easily adjusted at the push of a button, it is so convenient. 3Material: Our unique thermal heating waist bag is made of velvet material and plush lining, this material is super soft, it is warm and comfortable to use. 4Belt: Our electric warm waist bag is uniquely designed with an adjustable waist belt that allows you to conveniently wear this electric warm waist bag around your waist. 5Scenes: Our hot belt bag are perfect for all kinds of outdoor activities like exciting camping, interesting hiking, skiing, fishing, hunting and more.Item Type: Thermal heating waist bagMaterial: Velvet, plushHeating Area: The middle areaInterface: 5V USBHeating Temperature: 40-55Power: 5V 1.2A 6WPower Source: power bank (not included)Weight: 196 g / 6.9 oz(approx.)PackageList:1 xThermal Heating Waist Bag1 x English Manual