These are for individual rooms, either small or large. The manufacturers don’t really go into room size for the sound and capabilities of the speakers. They leave this up to you to judge if the quality of the sound is adequate for the room size. with some of these products, they are economical in cost, so making them hit the extreme for the highest volume control may distort the sound a lot. If your rooms are small or widely open to each other, it is possible that the sound will travel throughout the home.