This Portable Heating Lunch Box is not only used to reheat food but also to cook raw food. Since it is a slow cooker, you will not need dials or timers. This portable microwave oven warms most meals in about 2 to 3 hours, hence you can take it anywhere. For frozen meals, they may take longer to be cooked or reheated. Whether you eat your meal as soon as it is ready or you want to wait for a few hours, you only need to place it in the triangular power oven to keep it at the perfect temperature. The temperature of this portable mini oven remains between 140°F to 230°F so you need not have to worry about your time setting and temperature. With a fashionable and convenient design, you can take this lunch box anywhere you go.