OJA Outdoor Compact Refrigerator Freezer, 12L Capacity 12V Mini Cooler/Warmer Electric Fridge for Trucks, Car, House, Dormitory, Office,Outdoor, Travel, Camping , Boat (Blue) Cooler & Warmer Functions: cool up to 27 Degree - 36 Degree Fahrenheit below Ambient Temperature, or warm up to 140 Degree Fahrenheit. State-of-the-art thermoelectric cooling technology: 12750 Dual cooling chip and system, 30 minutes forced refrigeration,Energy Saving, Maintains temperature for up to 2 hours after it has been unplugged from 12v power outlet in vehicle. Mini Size but Big Capacity: 12 Liter capacity holds up to 12 soda cans and regular 550ml bottle as well. Easy Operation: Simply plug this into your vehicle's 12v DC cigarette lighter outlet to use. Its hot/cold/off switch has indicator lights and is on the back of the unit. Environment FriendlyEnvironmental protection without fluorine pollution ,No noisy, Energy Saving, Perfect for home and vehicle.