A pretty cool cat toy. I’d never have thought it. A fascinating aspect of the video is the way Smokey’s body jerks in time to the clicking of the metronome. Is this due to sound sensitivity? It makes a very sharp sound. I think this should be discussed. I have seen this before. I think the hearing of cats is so sensitive that the sharp click of the metronome slightly shocks the cat which makes him jerk back each time it clicks.
Associated page: Cat seizures caused by sharp sounds linked to old age

The word “metronome” is from the ancient Greek μέτρον and νέμω. Musicians use it to hit a regular beat.