ITEM NAME:DIY USB Powered Vest Jacket 4 In 1 Adjustable Temperature Electric Heating Pad Features: Material: Made from composite fiber material, comfortable, flexible, wear-resistant, insulated, and washable by water. Easy to Use: You can directly put it into your jackets, vests and other clothes for warming and heat it by using 5V 2A power source. Waterproof: Foldable and water resistant to a certain degree, heating evenly, washable, but do not immerse it in water for long time. Application Area: Clothes, vests, waists, abdomens, pets and so on. Please avoid the central heating wire when sewing. Lightweight and Portable: Convenient to take with for outdoor camping or other activities on winters. Also applicable to the people who are afraid of coldness. 3 Gear Adjustable Temperature: Three temperature, are engineering according to the human body needs temperature use strict debugging setting gear red, blue and green light is in the quick recognition and debugging to the appropriate gear temperature. Specifications: Material: composite fiber Color: black Size(L x W):about 8x16cm/3.15x6.3 inches Input voltage: 5V 2A Maximum voltage: 5V Normal temperature resistance: 15ÃŽ © Power supply mode: USB power supply Adjustable temperature: 45 ℃-65 ℃ Gear setting: red (high) blue (intermediate) green (low) Package included: 1pc x electric heating pad Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement..Lightweight and Portable: Convenient to take with for outdoor camping or other activities on winters. Also applicable to the people who are afraid of coldness. Easy to Use: You can directly put it into your jackets, vests and other clothes for warming and heat it by using 5V 2A power source.