You operate a simple microwave oven with 1 or 2 rotary knobs. This makes the simple microwave oven very suitable for elderly or seniors. With 1 or 2 operations you can warm up a ready-made meal. Do you want to heat up and defrost leftovers? Then a solo microwave oven is the most suitable. If you prefer a fresh lasagne, you are looking for a simple microwave oven.