1.Adopting DC frequency compressor cooling technology, using environment friendly refrigerant, it brings about rapid refrigeration. 2.It is designed for mobile use, suitable for cooling or refrigerating food on automobile and houseboat. 3.It is designed with a movable extracting basket, and it storage cubage is large. 4.This machine is controlled by microcomputer. With Push-button operation and LED display, temperature is accurately controlled; it can be set from 10℃to -19℃. 5.The machine itself has excess voltage protection, power reverse connect protection, high temperature protection, these protections has improved the safety in use. 6.This machine is not only working with direct current DC12V/24V, but also working with alternating current AC100V-240V after allocating a power adapter.