FREECOOL thermoelectric cooler and warmer adopts advanced semiconductor cooling technique which not only cooling but also warming optionally, even switch off the unit still can keep constant temperature for almost 4 hours; Without any compressor, CFC-free, low noise and no pollution; AC,DC dual power inputs; low consumption, long life, beautiful shape, portable and easy-carrying being regarded as a good type of environment-friendly product all over the world, also a good option for home supply and travel. Ideal for home, office , dorm, beauty parlor, car, boat, etc to store food, fruit, drink, wine, beer, cosmetic and medicine, cigar ,tea as well.