The perfect road trip accessory:This versatile 12 V DC cooler/warmer with 34L / 36 Quart capacity can be used upright as a classic cooler or on its side as a portable mini fridge on the road; add an AC adapter (sold separately) to seamlessly transfer from your vehicle to the indoors. The durable hard plastic injection molded exterior protects contents and ensures peak performance. Keep your favorite drinks cold without ice or safely store items such as yogurt, cheese, milk, and meats. Switch to warming mode to keep your lunch ready to eat, bring home take-out, or transport hot dishes to a family gathering.Trust in reliable iceless cooling technology:Efficient and eco-friendly thermoelectric technology with no CFCs makes this the perfect travel accessory for your car, boat, or RV, effectively keeping items cool to 40°F (22°C) below room temperature or warm to 140°F (60°C), using less power than your vehicle’s tail light.Tips for Best Use:For the quickest cooling, pre-chill items before placing them in the cooler.For effective operation, ensure the fan is not blocked.Minimize opening and closing and ensure the lid is closed properly.The lowest possible temperature depends on the surrounding temperature.To avoid draining your vehicle’s battery when using 12V mode, only run the cooler when the engine is on.