feature:1. Usage: Press and hold the button for 3 seconds to turn on the machine. When the temperature is high, the output will be 100% voltage-the red light will be on. After 5 minutes, it will automatically return to the medium temperature-the green light will be on. Press the button to control the temperature rise-medium-low. Press and hold the button for 3 seconds to turn off.2. Easy to use. You can use a 5V 2A power supply to put it directly into jackets, vests and other clothes for heating and heating, such as computers, power adapters or power banks (not included).3. Application areas: clothes, vests, waist, abdomen, pets, etc. Please avoid using central heating wire when sewing. The maximum temperature is 55 degrees Celsius (131 degrees Fahrenheit).Foldable, water-resistant to a certain degree, evenly heated, and washable, but do not soak in water for a long time (stick the cloth together, long-term soaking will affect the adhesive force)4. Lightweight and portable, convenient to carry when camping or other activities in winter. It also applies to people who are afraid of the cold, they no longer worry about winter.5. Don't let yourself, babies or people who are not sensitive enough to heat. Do not use in a humid environment, please dry before use. It is strictly prohibited to use it in an unoccupied room.According to manual measurement, the difference is 2-3%.Before purchasing the product, please check the size chart carefully.1 inch = 2.54 cmPlease note that due to the influence of light and screen, slight chromatic aberration should be acceptable.What do you get:1PCS x USB heating pad
