Heated Core Heat Camouflage Vest (Battery Powered, Medium) Includes rechargeable battery 2Ah and charger Anti-pill fleece with water resistant coating Thinsulate insulation directing the heat toward your body Includes one rechargeable 7V 2.2Ah lithium-ion battery and charger that weighs less than 4 ounces and has a 4-level microprocessor controller built right in Mossy Oak Break Up camouflage pattern