This unit plugs into other units included in the Hook up Connectable Entertaining System so you can mix and match units for any occasion;Includes special cord that pulls out to use with standard outlets or stores inside the base to connect multiple units together;Includes connecting outlet that connects multiple units together;3.5 Qt. crock is perfect for holding appetizers, dips, small or large finger foods, small roasts and more;Features Low, High and Warm Settings for added convenience and flexibility while entertaining