... AC/DC/BATTERY work 12 hrs 2~8'C,antifreeze,LCD display Dison diabetic portable refrigeratoris lightweight and small, support battery power ... , keep insulin safe for 30 days under ambient 40'C4. Large LCD display, show the time and refrigeration temp clearly, interchangeable between 'C ... portable refrigerator Control panel: 2~8'C diabetic portable refrigerator, LCD display