 They are not battery operated. They have a built-in battery, so you don't have to change the batteries on them. Oh, nice. And we'll come out and install those, and we'll come out. We do have some carbon detectors, and we will come out and put up your yard signs. But you were talking about tornadoes, and you know a fact about tornadoes and hurricanes that a lot of people don't think about is, and some do, is when you go into that storage shelter or you get into that,