There's a frequency which the dog can somehow detect. Evelasting, what do you think it is? Is it the original instrument? Yes, oh, absolutely. So one of the things that my son told me why the spoto fi worked so well was because they mixed familiar songs with brand new ones. And amison doesn't do this very well. I think it over assumes tat you 're preoccupied by price. My issue is that if you only search for what you know you want and then sauce it at the lowest possible price - Amason tends to assume that you have the mentality of a procurement operative. The example i was giving is the toastter. Ok?