High Powered Heated SocksThe heated socks are equipped with a pair large capacity of 5000mAh batteries whose heating time is up to 10 hours. Heating elements covers whole toes area, help focus heat in the toe to keep your feet from getting cold. Heating elements made of carbon fiber which provides excellent durability and safety standards. Great for arthritis foot and chronically cold feet and stiff joints. The heated socks can keep your feet warm all day long. High Quality MaterialsMade of 78% Cotton, 20% Polyester, 2% Spandex material, the socks are absorbent, breathable, quick-drying, elastic thickened. Soft Padded reinforced heel & toe, and recessed heating element help focus heat in the toe to keep your feet from getting cold. It is lightweight and non-bulky while covering the calf. Smart APP ControlIf you look for the toggle button inside the heated ski socks in the outdoor snow, you not only need to bend over, but also mess up your ski pants or ski boots, which is a terrible experience. If you have this heating socks with APP, you can adjust the temperature of the heating socks at will. Adjustable Temperature SettingThese heated socks are designed with 3 heat settings, including high heat-red (140-150, 4.5-5.5 hours), medium heat-green (130-135, 6-7.5 hours), and low heat-blue (110-115, 9-10 hours) make these electric heated socks ideal for keeping your feet warm in winter. Unisex heating socks, long-tube cotton socks can cover the calf, fashionable design can perfectly match different clothes, so there is no need to worry about matching. Package includes 1 pair of heated socks, 2*rechargeable batteries,2*USB charging cables, 1* manual.