ISOPHO Winter Novelty Thermal Heated Socks ISOPHO 3.7V battery heated socks for men and women known as winter life savor. These battery socks are upgraded to use far infrared heating elements which can stimulate your blood circulation. Give you a warm winter.3.7V 3500MAH Rechargeable Li-ion Batteries & 3 Settings Temperature Controller The electric socks Include pair of 3.7V 3500MAH rechargeable lithium polymer batteries. Heating Up to 6-12 Hours, battery full charge around 3-4 hours . Also, it is with 3 heat setting controllers for you to adjust the temperature easily.Soothe Your Feet With Premium Combed Cotton These heating socks are made of pure cotton material. Combined with ergonomic design, the socks have good breathability and excellent sweat perspiration effect, and you will feel very comfortable. The battery on these electric rechargeable socks is easily removable and unobtrusive so you dont have to deal with extra weight.Unisex resilient warm cotton socks: Men (M: 57, L: 79), Women (M: 68, L: 810).When To Use Comfortable fit no matter if you are shoveling snow, walking your dog, snowboarding, fishing, cycling, or watching baseball. It makes perfect heated ski or hunting socks. So, if you are looking for a solution how to keep your feet warm in your hunting stand, well look no further Excellent Gift Choice Everyone needs more socks. Great socks often make great gifts at Christmas or other holidays. And these thermal socks make the perfect present for hikers, outdoor workers, Thanksgiving, or Daily Wear. It's a great gift in winter for family, friends, and anyone you love, like birthdays, New Year, Anniversary Christmas gifts.