Item Type: Electric Vest Material: Polyester Power Supply: USB interface Package List 1 x Electric Vest 1Intelligent Temperature Control: This electric heating undershirt adopts intelligent temperature control technology, which can automatically adjust the temperature according to your body's needs and keep you comfortably warm. 2Prime Fleece: Made of premium fleece material, soft and comfortable, lightweight and warm, delightful. 316 Zone Heat: Built in composite carbon fiber heating elements immediately provide soothing heat in 16 zones, including the core areas of the neck, back, abdomen, and lumbar region, providing heat body warmth, improving circulation, and relieving muscle pain and tension. 4Multiple Scenarios Applicable: Suitable for outdoor sports, winter travel, outdoor work and other scenarios, providing you with warmth and comfortable protection. 5Perfect Gift: Ideal companion for daily commuting, winter golfing, hunting, hiking, fishing, walking the dog, staying warm in a cold office, and more. Great Thanksgiving and Christmas gift to your family or friends.