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 4hours;without any compressor,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 option for home supplu and travel,ideal for home,office,dorm,beauty parlor,car.boat .ect,to store food,fruit,drink,wine,beer cosmetic and medicine,cigar,tea as well.