Panasonic?s NN-SD681S Genius Prestige 1.2 cu. ft. 1200W countertop/built-in microwave oven with blue LCD features Inverter technology and Genius sensor cooking. Inverter Technology perfects the art of cooking with microwave ovens delivering delicious flavor excellent color as well as superb shape and texture in the foods you cook. Inverter Turbo Defrost technology is an advanced microwave sequencing system using the inverter continuous-power delivery feature to defrost foods faster. It also has Inverter Melt & Soften technology to make this task quick and easy. Genius Sensor Cooking takes the guesswork out of microwave cooking by automatically setting power levels and adjusting cooking or defrosting. In addition this microwave oven has an easy-to-use pop-out dial and button panel which is a departure from the standard keypad found on most microwave ovens. This microwave can be placed on a countertop or built in (trim kit with built-in installation instructions sold separately).