... AC/DC/BATTERY work 12 hrs 2~8'C,antifreeze,LCD display Dison diabetic portable refrigeratoris lightweight and small, support battery power ... a very sweet gift for diabete friends whom have traveling, outdoor activities, or bussiness trip, or don't want to store ... insulin safe for 30 days under ambient 40'C4. Large LCD display, show the time and refrigeration temp clearly, interchangeable between 'C ...