Description:The heating socks are made of high-quality modal material, which is wear-resistant and durable. It has three heating modes and high elasticity. It is waterproof and washable and can be used many times. The large battery capacity allows socks to withstand a long working time without frequent charging.Features:1. Large battery capacity: equipped with a 4000mAh battery with large capacity to ensure long working without frequent charging to provide up to 20 hours of continuous heat.2. 3 Degree of Heating - The heating socks are different with high temperature (55 degrees Celsius, 7 hours), medium temperature (45 degrees Celsius, 11 hours) and low temperature (30 degrees Celsius, 20 hours). Charge it when you use it for the first time.3. HIGH QUALITY MATERIAL - Made of 82% cotton, 14% polyester and 4% spandex, heating socks have a certain elasticity and make the socks more comfortable, softer, warm and breathable. The built-in heating element heats the soles of the feet to keep you warm and feel the warmth without touching them.4. All purpose heating socks: heating socks for men and women are the most suitable sizes. They can be washed by hand or in the machine. Machine washable, easy to put in laundry bag, very convenient.5. Perfect for winter: rechargeable heating socks are perfect for a variety of winter activities indoors and outdoors such as skiing, fishing, hunting, snowball, camping, mountaineering, cycling, etc.Specifications:Name: heating socksMaterial: polyester, cotton, elastanePower: 10WVoltage: 3.7VHeating zone: soleColor: black, whiteSize Type: One SizeThickness: thickenedSock height: crew socksApplicable season: winterGender: male and female.Charging time: less than 8 hoursGear adjustment: 3 speed settings