Cooling / heating system: it cools up to 15 - 25 Deg.C below ambient temperature, and warms up to 55 - 65 Deg CThermoelectric element: it ensures reliability and efficiency, also includes a built-in fan for heat dissipationCozy capacity 7.5L perfect size for a few of your favorite beverages. Keep them on hand at the office, on the road, in your dorm, and moreCompact and lightweight design: keep it on the go, while traveling by car or boat. Great for dorm rooms, offices, cars, picnics, BBQ, camping, boating and more.Convenient strap: carrying is a breeze, easy to take while traveling