... 50-60HzSafe, Efficient, Healthy,Multi-Function : convection oven comes with a high qulity glass bowl, it combines the electric grill ... -Efficient: Owing to the powerful heating element together with the patented internal circulating system, Convection oven transfers ... EL-812 halogen convection oven with footer baseEL-812 convection oven with footer base, with extend ring EL-812 CONVECTION ...