function 1. This product uses high-tech heating materials USB 5V low voltage, environmental protection, energy saving, safety and reliability 2. The product has the touch screen function, soft and comfortable, and moves freely simply open the inside of the glove and remove the heating element from the glove It becomes a lightweight washable glove 3. In a short time, the temperature can reach about 42 degrees, which is very comfortable and warm for the human body 4. Elegant and generous design for personal use and winter gifts Product Name: USB Thermostatic Gloves Rating: Please provide slight 1 - 3cm (0.4 - 1.18) difference because the color variation of different display settings is very small when measured manually