【2-IN-1 COOLER AND WARMER】The portable freezer is compact and easy to carry. The RV freezer has cooling, heating, and heat preservation functions, and it also has strong practicality. You can store fresh foods such as cheese, beverages, vegetables, muffins, and snacks. This portable freezer will fit comfortably in your car trunk, behind a car seat, or in a truck bed. The electric car cooler is equipped with a car power cord, connected to the car cigarette lighter, a convenient hot and cold switch for control, uses cold for cooling, and uses hot for heating. The 12V power cord is compatible with an AC/DC adapter for seamless indoor transfer. The RV refrigerator uses a food-grade inner liner and a thick food-grade inner liner, which is safe and healthy without peculiar smell. You can power this 12V DC portable freezer refrigerator on various vehicles, such as SUVs, trucks, RVs, camping, trucks, boats, etc.