I just wanted to let you know this is the best thing I ever bought ever for my house. The Wave thing – I don’t have any cave crickets, I keep waiting and hope just because I emailed you they won’t appear, but so far , nothing. At first the first few days there was about 25 walking up the cellar wall, I killed a few and then for some reason they are all gone, I don’t know where they went and I don’t care, first time in years no cave crickets!!!!! My house smells better and I am so happy. Glad I made the decision to do this.