Air pump soft serve yogurt ice cream machine 2,Pre-cooling 3,Keeping temperature at night 4,Low mix alarm BQ818Y soft serve yogurt ... (More energy can be saved and using life of ice cream machine can be longer.)4,Direct-cooling Design (Refrigeration effect ... time and prepare adding ice cream material in advance.)5,Counter for Ice Cream (It is helpful to check the cost.) air pump soft ice cream machine