Designed with the avid outdoor person in mind, Fieldsheer’s® Smart Thawdaddy 2.0 Bluetooth heated vest delivers unparalleled performance with advanced features, including a compact design and a powerful heating system. Powered by Powersheer™, the 7.4-volt lithium-ion battery holds up to ten hours of power per charge delivering comfort no matter what nature throws at you and with a universal USB charging port. The proprietary MW Connect™ app provides robust connectivity, and you can control your Mobile Warming® settings seamlessly, ensuring you stay warm and keep going longer. Perfect as a mid-layer, the Thawdaddy vest is an ideal addition as a layering option for evolving winter conditions. The front zipper design 100% polyester shell provides protection from the elements while the Sweatsheer® technology wicks moisture away from the skin, keeping you warm and dry for hours on end. 4 different heat settings allow you to maintain a comfortable core temperature, while the compact design makes this the perfect solution for keeping in a car, truck, motorcycle, or boat.