DESC: The GE PT970BMBB Black On Black features True European Convection, which combines a third dual-loop heating element located in the back of the oven cavity, and a fan that circulates air throughout the oven cavity, to deliver a uniform and savory cooking results. It incorporates a microwave oven on the upper level and convection bake and roast on the lower oven only, which provides you with ideal airflow throughout the oven cavity, ensuring better baking results and roasting meats up to 25% faster than a conventional oven.