Features13 Temperature Control: The heated hand muff has 3 adjustable heat settings. High 65 149, medium 59 138, low 50 122. Depending on the ambient temperature, you can easily switch between the 3 heat settings. 2Electric Heating Hand Warmer Pouch: In many winter outdoor activities, how to keep your cold hands warm in cold weather? This heated hand muff solves your problems. 3Key Switch and Adjustment Design: Long press for three seconds to start the machine. The initial gear is low, and click to switch gears. 4With A USB Interface: Heated hand muff is equipped with a USB interface that can be connected to a mobile power source for power supply. 5Back Design with Storage Pocket: There is a storage pocket on the back design, which can store phones, keys, small items, etc.SpecificationItem Type: Heated Hand MuffProduct Material: CottonWeight: Approx. 260g / 9.2ozGear: Third GearInterface: USBTemperature: Approx. 50 Low, 59 Medium, And 65 HighProduct Size: Approx. 46 x 18 cm / 18.1 x 7.1 inPackage List1 x HeatedHandMuff