Our socks are made from double-layer thickened materials, offering high tensile strength across various dimensions such as sole length, toe width, sock length, and width. This ensures a perfect fit, regardless of your foot size. Features: Experience comfort and flexibility with our three adjustable modes. You can modify the gear and temperature settings as per your preference. The highest temperature setting reaches approximately 55 degree Celsius. Our socks come with a remote control for easy temperature adjustment. The battery arc design ensures a better fit around your legs. With its ergonomic design, it's not only functional but also aesthetically pleasing. Cleaning is a breeze as the socks can be washed directly with water. Simply remove the mobile power supply before washing and let it dry in the sun afterwards. User-friendly Operation: To turn on the socks, press and hold the power button for 2-3 seconds. Use the same button to adjust the temperature settings, catering to the needs of various users. Specifications: Material: Cotton Size: 32*23cm/ 12.6*9.1in Voltage: 5V Battery: 2*3.7V 4000mAh lithium battery Heating temperature: 35-55 degree Celsius Package size: 19.3*11*7.6cm/ 7.6*4.3*3in Package weight: 350g/ 12.3 oz Packing List: 1 * Pair of Socks 2 * Power Bank 1 * Remote Controller