KastKing Calido Heated Socks are designed to keep your feet warm and comfortable in cold conditions, making them ideal for outdoor activities in winter •Socks come with rechargeable batteries that power the heating elements. The batteries are removable and can be charged separately •The heating elements are designed to provide controlled and consistent warmth without overheating. Model offer multiple heat settings so you can adjust the temperature according to your preference and activity level •Made from a combination of materials like polyester, spandex, and sometimes wool, which ensures warmth, flexibility, and moisture-wicking properties •Designed to fit snugly, these socks often come with features like stretchable fabric and adjustable straps to keep the heating elements in place •Battery life can vary depending on the heat setting used Heated socks are especially useful for activities like hiking, skiing, or even just for those who spend extended periods outdoors in cold weather