I have been using this product for a few years now. It has made a difference to my scardy cat. I first used it as i was getting a new roof. I came home to find my boy lying in front of plug in. My neighbours cats seem to love it too, as ive come home to find them lying in front of it. Then i adopted a kitten ( not planned) she also loves it and it really makes a difference in calming them . Would 100% be buying again. Fast delivery . 2days