Savior Men's Women's Heating Socks, 7.4V 2200mAh Electric Rechargeable Battery Warm Winter Socks Black S-XL

Rechargeable Electric Battery Heated socks made with 80% cotton , 12% polyester ,8% Elastane material.Absorbent, quick-drying, elastic thickened. Imported heating elements and quality material.Fast heating in 30 seconds，the feet get comfortable and warm. With Far Infrared Fiber heating elements Layer,promote blood circulation.Great for Raynaud’s,Arthritis,Bad Circulation,Stiff Joints People. Electric socks will last up to around 6.5 hours on the lowest setting , 3-3.5 hours on the medium setting and about 2 hours on the highest. Battery Operated Socks powered by with 7.4V 2200mah rechargeable lithium battery packs，full charge around 3-4 hours，duration 3 - 8hours with 3 heat setting. controller LED red is for high temperature,white for medium temperature,blue for low temperature.you can easily adjust the temperature. It is very suitable for hunting, skiing, fishing, hiking, dog walking, snowboarding, motorcycles, cycling, and sports events.