Thermoelectric and compressor-operated cooling and freezing combination: Mobicool MB 40 AD/DC. The Mobicool MB40 AC/DC offers two cooling systems: a compressor and a thermoelectric cooling unit. The latter powers the cooler when connected to the vehicle's 12V battery, ensuring that the contents remain reliably chilled from home to the campsite. This is a technical solution for an important practical feature. In compressor mode, the MB40 AC/DC cools and freezes at 230V AC even in high ambient temperatures down to -15 °C, while the thermoelectric system cools to 20 °C below the ambient temperature. Thanks to enhanced insulation and a lid with a rubber seal and magnetic closure, it efficiently cools up to 38 liters of contents. Additionally, the robust steel-coated housing and a maintenance-free fully hermetic cooling system ensure that this cooler always performs excellently.