Panasonic NN-SN773SAZ Stainless 1.6 Cu. Ft. Countertop Built-In Microwave with Inverter Technology, Stainless Steel/Silver Enjoy faster cooking times with 1250 watts high power Microwave Inverter technology delivers a seamless stream of cooking power Advanced Inverter Turbo Defrost speeds up defrosting time. Keep warm- yes ( up to 30 minutes ) Automatic sensor adjusts power and times for different foods Sleek, tactile controls make cooking touch-button simple