So I was surprised how loud is the toy, but my cat makes it fun .. often it just goes back to but at least he is engaged and interested in it .. "chasing" the ball at times and is focused on him. now and then the toy has remained where hanging, so it was interesting again. I wanted to buy one for my cat Stains Odour where I do not always have to play with him. While this is now fulfilled, but that bothers me the noise (when studying, reading, ..)