Does not work! My cat meows so much that I would going crazy. He would meow in the early mornings and at night, and whenever he wanted attention he would just meow meow meow meow. Non stop! So I looked online for a solution and the rave reviews for Feli Way seemed like it would do just the trick to stop the endling meowing and whining and crying. But no! It's been plugged in for like 2 weeks now and the meowing has NOT stopped. This isn't some magic potion or anything, this just seems like a air freshener without the smell! No affect on my cats meowing at all. I'm very disappointed in this since it was like twenty bucks! I wish I never bought it and will not be recommending this to anyone else at all. If anything, maybe playing with my cat more would make him more tired or something and prevent him from meowing all night. Oh well, I tried. Hopefully a better product comes out in the future, like a spray collar for cats that will spray them in the face when they meow so loud. That would be perfect! Feli Way should make something like that since this product sucks. Hopefully someone else finds use out of this because I didn't, and I will never buy from this company again.