Upgrade your microwave with the Insignia 2.2 Cu. Ft. Countertop Microwave with Sensor Cooking and inverter technology. Featuring modern inverter technology, the microwave uses a constant stream of power to ensure even cooking and avoids overheating the edges of your plate. The microwave includes a control panel with 19 preset functions to defrost meat, melt butter, heat baked potatoes, or microwave popcorn at the simple touch of a button.