The traveller Range was designed for the individuals that are looking for a smaller unit that can be used for shorter Trips with a less fair to keep cool. The unit is more compact and can fit into the trunk or backseat. Do not let it's small size fool you, this unit will maintain temperatures under the most arduous conditions. The traveler series was designed for those who do not have access to 120 volt for long periods of time and so the battery amperage draw is important. It’s tried and tested by casual campers and 4 × 4 enthusiasts who are heading into extreme conditions The unit’s insulation is thicker than our competitor's at 60mm/2.37 inches, for better maintenance of temperature. Just what you need in high quality at an affordable cost.