The Siemens CM633GBS1 is a compact oven with a microwave function. You can use it to cook a delicious meal today, and to quickly heat something tomorrow. With the CookControl Plus you'll find the perfect setting for every dish. Want to not only save hot air but power as well? Choose HotAir Eco. The oven uses 30% less power, but doesn't skimp on the baking or cooking results. Done cooking? The special coating reduces the buildup of food remains and grease on the oven walls, making the oven easy to clean with a cloth.