This “premium” aerator stopped working off battery power after 6 months. Prior to this failure it would shut off from the tiniest bump in the road. It is definitely “whisper quiet” now since it won’t work with batteries. It will still work when plugged in but that does me no good once I leave the house. I called customer service numerous times and couldn’t get anyone to pick up. Very disappointed in the product and lack of customer service. You’re better off buying a cheap aerator and dealing with the noise.

So far it has performed well however it was a short ice fishing season.