Feature: 1. Made of cotton, absorbent, breathable, quick‑drying and elastic. 2. Comfortable and wear‑resistant, not easy to pilling, smooth fabric, delicate and soft, warm and durable. 3. Focusing on the toes to prevent the feet from getting cold and promote blood circulation. Suitable for arthritis feet, long‑term cold feet and stiff joints. 4. The heating plate is located inside the sock. The specially designed battery bag is safe, easy to carry, hide small battery bag design, high elastic package, not easy to fall, comfortable, compact, beautiful and exquisite. 5. Use mobile power for cold weather projects or winter outdoor sports, winter ski hunting, camping riding and motorcycles to keep warm, heating socks. Specification: Condition: 100% brand new Item type: Heating Stockings Material: cotton Size: free size Weight: Approx. 208g 2 matching rechargeable batteries Battery model: LLS-58 Battery capacity: 2200mAh Battery type: lithium battery Output voltage and current: 3.78V, 1.5A Input voltage and current: 5V, 0.52A Package List: 2 x Socks 2 x BatteriesMade of cotton, absorbent, breathable, quick‑drying and elastic. Focusing on the toes to prevent the feet from getting cold and promote blood circulation. Suitable for arthritis feet, long‑term cold feet and stiff joints. Comfortable and wear‑resistant, not easy to pilling, smooth fabric, delicate and soft, warm and durable. Use mobile power for cold weather projects or winter outdoor sports, winter ski hunting, camping riding and motorcycles to keep warm, heating socks. The heating plate is located inside the sock. The specially designed battery bag is safe, easy to carry, hide small battery bag design, high elastic package, not easy to fall, comfortable, compact, beautiful and exquisite.: B09B3LV77Z. Manufacturer: Shanrya. Product Dimensions: 0.39 x 0.39 x 0.39 inches; 7.34 Ounces.