Features 1. Long Heating Time: Rechargeable heated socks can equipped with 4000mAh large capacity battery, providing you with up to 10 hours enduring warmth. 2. Material: This heating socks are made of premium cotton material. Combined with ergonomic design, the socks have good breathability and excellent sweat perspiration effect, and you will feel very comfortable. 3. Multiple Heating Methods: The heated socks are designed with 3 heat settings, including high heat, medium heat and low heat, Heat socks reach a temperature from 113F to 140F. and can last up to 4 hours. 4. Upgraded Heating Design: The heating element of this pair of socks has been upgraded to a carbon fiber line heating element, and the heating line has been hidden in the position of the forefoot, so that your toes will quickly feel warm and you are no longer afraid of the cold. 5. Widely Use: For people who always felt cold of feet when winter comes. And it is also great for men and women who love hunting, skiing, ice fishing, and other winter events. We have special pocket design of placing the battery pack, give you fully comfortable whether you are walking, running or sleeping. Specification Material: Cloth Color: Black Size: 13 x 10 x 2 inch Weight: 175 g, 170 g, 140 g Battery: 4000 mAH, 5000 mAH Voltage: 3.7-5 V Temperature: 45-60 Package Include: 1 Pair Heated Socks or 1 Pair BatteryAbout Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel 0 to contact usDuring the shopping process, if you have any questions, please feel 0 to consult us, we will reply you within 24 hours, wish you a happy shoppingThanks for your cooperation and we"ll make you feel satisfied.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin