Auto-sensor or auto-weight programmes: these calculate cooking time for you. There is no need to enter the power or time - just select the food and its weight, and press start.
Catalytic self clean lining: a catalytic lining will prevent build-up of food and grease as spills are continuously burnt-off when the convection oven is in use.
Chaos defrost: this system blasts frozen food with strong, random microwave energy, which heats the food more evenly thus defrosting it quicker.
Child lock: stops children from turning on or operating a microwave unsupervised.
Convection cooking: this is how food is cooked in an ordinary oven.
Crisper plates: these help crisp food like pizzas, quiches and pies.
Heating category: microwaves are classified from B to E depending on their wattage and how quickly they heat food. B is the slowest, and E is the fastest.
Multiple sequence cooking: automatically changes power levels during cooking so that food can be defrosted and then cooked without stopping and resetting the microwave.
Sensor cooking: this monitors the moisture level and temperature of the food, and automatically adjusst the power/timer to prevent overcooking.
Timer: this is set using a dial or push buttons, and different models vary between 0 to 60 minutes and 0 to 99.99 minutes.
Turntable: this rotates when the microwave is on, ensuring food is cooked properly. It is removable for cleaning.