Morningware Halo Infrared Countertop Oven with extender ring Countertop oven uses conduction, convection, halogen, and infrared technology 50-percent faster and 75-percent more energy efficient than conventional ovens No need to preheat or defrost; digital controls; heats to 400 degrees F; keep-warm mode Dishwasher-safe parts; grill, extender ring, cooking chart, and recipes included Measures 13 by 11 by 17 inches; 1-year limited warranty