Application: Mainly used for diabetic traveling with insulin, vaccine, growth hormone , blood etc Features: 1. Portable, lightweight. 2. 3 power supplies: DC12 24V, AC100 240V,7.4V battery 3. Keep 2-8 degree under ambient 32 degree, set temp 2- 25 degree 4. LCD temp display, interchangeable between degree and Fahrenheit 5. Thermoelectric Cooling, No Feron and liquid 6. Low Power consumption, energy saving.