Features: Heating Elements Placed Whole Toes,Top & Bottom of FootThe upgraded heated socks have added heating wires to expand the heating range of the soles of the feet, not only the toes and the insteps. When using this heated socks, you can feel the warmth of the entire sole of the foot, promote blood circulation, and enjoy activities in winter.5V 5000mAh Rechargeable Li-ion Batteries and Four Warming LevelsThe battery heating socks are equipped with a pair of 5V 5000mAh rechargeable lithium batteries which the heating time is longer than that of the 2200mAh and 4000mAh batteries. This electric heating socks has four temperature settings: Low heat(35C/149F, 6.5 hours), Medium heat(45C/113F, 5 hours), Medium heat(55C/131F, 4.5 hours), High heat(65C/149F, 3 hours). Heating Up to 3-6.5 Hours and full charge around 3-4 hours.WashableThis battery sock is machine washable. Note: Be sure to remove the battery before washing, and insert the battery link wire into the battery pocket(Note that the battery can not be washed).Upgraded Pocket coverThe battery pocket has an added button design to prevent the battery from falling out during activity.Easy to useThis sock is easy to use. Insert the battery, put it in the battery bag and button it. Long press the control to switch the machine on and off, and according to the weather, short press to control the temperature. This is very friendly for elder people.SafetyThe heating element of the electric socks is made of insulating material and has been rigorously tested, which is safe to heat and protect your feet in the cold winter.Soft Comfortable Electric Socks for Men WomenElectric heated socks are made of premium modal fiber, soft and breathable. It is designed for men and women in sizes 8-13.5. Suitable for various outdoor activities such as mountain climbing, skiing, cycling, camping, etc.Ideal Gift in WinterIn the cold winter, this heated socks are ideal as a birthday or Christmas gift for your parents, lovers, friends, classmates, especially those who are often outdoors and work. This gift will bring warmth to their winter and enhance your relationship.Specification:Battery Capacity5000mAhGear4 GearsPackage Included:1 pair socks2* Batteries1* USB Cable1* User ManualNote:Please allow 0.5-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!