I cannot say how happy I am that I bought this plug in! My 2 year old Schnoodle would shake, pant and sit under your legs when ever a firework bang went off. And then that was him gone all night, not eating not moving and a low tail between his legs. I plugged this in and within a day he was so much calmer. He still sits up when there’s a firework and if there is massive bang he shook a little but the turn around was amazing. He calms down within minutes, will lie down and eat treats and food which is such a massive improvement I can’t actully believe it. Even on bon fire night with constant fireworks going off he stayed lay down and calm. It does have a slightly odd smell which isn’t awful but a bit odd but for the huge help it gives my dog it’s worth it. Would definitly buy again!