Designed for outdoor enthusiasts, Fieldsheer's® Bluetooth Smart Thawdaddy 2.0 heated vest offers unparalleled performance with advanced features, including a compact design and powerful heating system. Powered by Powersheer™, the 7.4-volt lithium-ion battery can provide up to ten hours of power per charge, offering comfort no matter what nature throws at you, and with a universal USB charging port. Our proprietary MW Connect™ app provides robust connectivity, allowing you to seamlessly control your Mobile Warming® settings, ensuring you stay warm and go longer. Perfect as a mid-layer, the Thawdaddy vest is an ideal addition as a layering option for changing winter conditions. The 100% polyester shell with front zipper provides protection against the elements while Sweatsheer® technology wicks moisture away from the skin, keeping you warm and dry for hours. Four different heat settings allow you to maintain a comfortable core temperature, while the compact design makes it the ideal solution for staying warm in a car, truck, motorcycle, or boat.