Application areas: Size: 24x7cm. clothes, vests, waist, abdomen, pets, etc. Please avoid using central heating wire when sewing. The maximum temperature is 50 degrees Celsius (122 degrees Fahrenheit). Adjustable temperature is 40-50 degrees Celsius. 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. This solid loose fit heated scarf pads would be great for going out, riding, biking, motorcycle, beach party, romantic dates, club nights, dinner out, daily wear or even for work. Suitable for various festivals, Christmas, Halloween, etc. Usage: and hold the button for 3 seconds to turn on the machine. When the temperature is high, the output be 100% voltage-the red light be on. After 5 minutes, it automatically return to the medium temperature-the green light be on. the button to control the temperature rise-medium-low. and hold the button for 3 seconds to turn off. Easy to use. You can use a 5V 2A power supply to put it directly into Scarf, jackets, vests and other clothes for heating and heating, such as computers, power adapters or power (not included). 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. colour: red Material: fiber Package Contents: 1 x Heating film Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.