Item Type: Vest Product Material: Down Voltage: 5V Gear Position: 3 Level Application Site: Shoulder/Back/Waist/Abdomen Shoulder Width: Approx.39.9cm / 15.7in Waist Width: Approx.48.5cm / 19.1in Cuff Width: Approx.17.5cm / 6.9in Weight: Approx. 384g / 13.5oz 1Fashion: You can mix and match sweaters, underwear, jackets, coat and other autumn and winter coat at will, keeping warm without losing fashion, and easily create a fashionable casual style. 2Material: This heated vest is designed with skin friendly materials and is lined with soft down, which is light and comfortable. 3Simple Operation: One start, convenient and practical, three gears can be adjusted at will, and the temperature is self knowing. At the same time, it acts on the abdomen, waist, shoulders and back to quickly heat up. 4Fine Workmanship: Fashionable V neck, generous and neat, exquisite cutting workmanship, simple and neat, fitting the shoulder curve. 5Application: This lightweight warm vest is unisex, suitable for autumn and winter. Due to the long lasting heating function, it is very suitable for outdoor activities, such as skating, mountaineering, snowboarding, hiking, snowmobile, outdoor camping. 1 x Vest 1 x User Manual