Feature Details A dynamic combination of stretch, lightness, and water- & wind-resistance for versatile comfort in changing weather. Weighing in at just 19.3 oz (size M), enjoy lightweight wear without bulk for unrestricted movement for city strolls, winter treks, and various outdoor activities. Effortless and secure closure with dependable zippers. Functional design featuring multiple pockets, including hand pockets, a zipper chest pocket, and a dedicated battery pocket. Easily adjustable fit with a practical drawcord for a snug, customized feel. A stand-up collar with a soft tricot lining enhances comfort during chilly adventures. Heating Performance Enjoy efficient warmth with advanced Carbon Fiber Heating Elements.?? Four heating zones: Left and right Hand Pockets, Upper Back, Lower Back Three adjustable heating settings (high, medium, low)?? Up to 8 working hours (3 hrs on high heating setting, 5 hrs on medium, 8 hrs on low) Heat quickly in seconds with 7.4V Mini 5K battery Battery Performance 7.4V output to expedite preheating Versatile Type-C port for battery charging and a USB port for other device charging Fully charged in 4 hours (with a 5V/3A charger) UL, CUL, CE, FCC, and RoHS certified for safety and quality assurance Capacity: 4800mAh/7.4V/35.4Wh Weight: 6.53 oz (185 g)