Material: Made of soft and comfortable plush, a special process makes it comfortable for daily use, USB Foot Warmer Boot can use for many years. High Heating Efficiency: The heated shoes will heat up quickly and maintain a constant temperature with 3 minutes. Ideal for people who uses computer to work or study for long hours in cold winter, such as office workers, students, game players, etc. Heated Slippers Foot Warmer: Protect your feet from low blood circulation, arthritis, and cold floors. In addition, this electric heated foot warmer could effectively relieve muscle, and chronic pain, increase blood circulation, and relax and warm the legs. Care Tips: It is recommended to machine wash or wash in cold water. After washing, please dry it before use. Widely Used: Perfect for keeping your feet warm while studying, working, talking, watching TV in cold weather. The heated foot warmer is widely used, warm and convenient.