Electric USB Heating Vest Pad Winter Warm Thermal Warming for Jacket

Usage: Press and hold the button for 3 seconds to power on. High temperature output with 100% voltage - Red Light. 5 minutes later, it switches to middle temperature automatically - Green Light. Press the button to control the temperature among high, middle and low. Press and hold the button for 3 seconds to shut down. You can directly put it into your jackets, vests and other clothes for warming. Heat it by using 5V 2A power source, such as computer, power adapter or power bank(Not included). Application Area: clothes, vests, waists, abdomens, pets and so on. Please avoid the central heating wire when sewing. Maximum Temperature is 55 Centigrade (131 Fahrenheit Degree). Foldable and water resistant to a certain degree, heating evenly, washable, but do not immerse it in water for long time. Take with for outdoor camping or other activities on winters. Also applicable to the people who are afraid of coldness. Do not let yourself, babies or people who are not sensitive enough to heat use it alone. Do not use in wet conditions, please dry before use. It is strictly forbidden to use when there is no one in the room. Product Material: Carbon Fiber Heating Cotton Thread Size:12 x 8cm / 4.7" x 3.4" Thickness(3/5pcs):2(mm) Thickness(8pcs):1(mm) Quantity:3Pcs/Set,5Pcs/Set, 8PCs/Set Rated Voltage:5V Rated Power:8W The normal temperature resistance(3/5pcs):15Ω The normal temperature resistance(8pcs):2.5Ω Maximum Temperature:55 Centigrade (131 Fahrenheit Degree) Three Button Red Light(High Temperature 55℃), Blue Light(Medium Temperature 50℃), Green Light(Low Temperature 45℃) What you get:3PCS/5PCS/8PCS x USB Electric Heating Pads