No Ice Required which means extra space for food and drinks! This means no need to find ice at peak times of the year, bypass retaurantes because you have all the drinks and food that you need in your Koolatron cooler.Ideal for tailgaiting, road trips, picnics or sporting events. Just plug into your cigarette lighter and cool to 45-50 F below ambient temperature. With the additional AC adaptor you can leave plugged in at home!