... cooler box for diabetic is lightweight and small, support battery power systerm as well as AC110V~240V and ... activities, or bussiness trip, or don't want to store insulin in a shared fridge in school, ... LCD display screen,interchangeable between Celsius and Fahrenheit5. Antifreeze function, automatic operate heating while air temperature below 0 ... 2~8 degree mini medical fridge ,to keep insulin cool