USB Rechargeable Electric Heated Insoles - Winter Foot Warmer for Men and Women Features: 1.Quick and Efficient Heating: Experience fast heating up to 60°C, warming your feet and toes in seconds for ultimate comfort in cold weather. No more cold feet in winter   2.Customizable Fit: The electric heated insoles feature size lines, allowing you to easily cut them to fit your shoes. Small size fits shoes from 35 to 40, and large size fits from 41 to 46. Ideal for most men and women.   3.Long-Lasting Heat: Powered by a 3000mAh rechargeable battery, these heated insoles provide up to 9 hours of continuous warmth.   4.Adjustable Temperature: Enjoy adjustable temperature settings from 35c to 70c, perfect for different weather conditions.   5.Washable and Breathable: These insoles are washable and reusable, ensuring long-term use. Hand wash only.   6.Convenient APP Control: Easily control your heated insoles with a mobile app, offering more convenience and flexibility.   7.Versatile and Multi-Purpose: Fits various types of shoes including sports shoes, boots, leather shoes, and cotton shoes. Perfect for outdoor activities like skiing, snowboarding, hiking, cycling, fishing, camping, and even dog walking.   8.Great Gift Idea: A perfect holiday gift for friends, family, or loved ones on occasions such as Christmas, Thanksgiving, birthdays, or anniversaries. Specifications: 1.Color: Black 2.Material: Fabric 3.Weight: Approximately 310g Package Includes: 1 Pair of Electric Heated Insoles Shoe Pads Keep your feet warm all winter with our USB rechargeable heated insoles - the perfect solution for cold feet Ideal for outdoor enthusiasts or anyone looking to stay warm in chilly conditions.