Features: -It features automatic temperature control and uses conduction heating technology to heat food evenly and keep food warm for hours （60°C-110°C）. -Easy to use, just put the food into the thermal bag, plug it in, and start heating, it is able to heat a variety of foods in about 2-3 hours (frozen foods take longer). -Made of oxford cloth, wear-resistant, tear-resistant, waterproof, sturdy and durable. -Compatible with a variety of flat bottom containers including aluminum foil, metal, stainless steel, ceramic and cardboard. -It comes with a built-in carry handle so you can carry it easily. Great for construction site personnel, patrol officers, travel, and more. .