EWave Turbo Glass Bowl Convection Oven White EWGCO1W Multi functiuonal: Broils, Grills, Roasts, Steams, Toasts and Bakes 3 Gallon Capacity Extender Ring increases capacity to 4.5 gallons Adjustable temperature control 60 min cooking timer with auto shut-off function Halogen, Infrared & Convection heat technology