Here is the test, and you can do it right now without buying anything: sit down and pick up one of your dog's front paws. If you can hold it for ten seconds without a fight, this tool will work for you.
If you can't, the problem is not the clippers and a quieter tool will not fix it. That is a handling problem, and it gets solved over a few weeks of touching paws with no tool in your hand at all. Buy this after that, not instead of it.
It also does not suit a dog that panics at any motor sound — a hair clipper, an electric toothbrush. Quiet is not silent. It hums, and you feel it.
And it doesn't replace patience. It is slower than clippers, which is the whole point: on a dark nail you go in short passes and look after each one. It also won't make a very thick, overgrown nail short in a single session — a nail left for months has a quick that grew out with it, and it comes back over several trims, not one.
And if it isn't right, send it back. You have 30 days and we refund it. We would rather take one back than have you fight your dog with it.