50 ℃ Continuously Heated Socks powered by 2 AA batteries will keep you warm all day. Improve blood circulation, prevent your foot from cracking and injuring in cold weather. Perfect for indoor and outdoor activities such as skiing, fishing, hiking and ... To hunt. Features: 1. Made of thickened cotton material that is super comfortable, breathable and well padded. 2.Soft heated socks with 2 AA batteries keep you warm all day, please buy the batteries yourself. 3.Carbon fabric silk heating, 50 ℃ constant temperature, heat quickly and pay back beautiful and cold feet in the cold winter. 4. Improve blood circulation, prevent the foot from cracking and hurting in cold weather. 5.Perfect for indoor and outdoor activities like skiing, fishing, hiking and hunting. Specification: Product Type: Heated Socks Material: Cotton Battery: 2 * AA batteries (not included) Color: Black Size: 41.5 * 10.5cm / 16.3 * 4.1 inch Package weight: about 154 g Package list: 1 x pair of heated socks 2 x battery compartment