I'm selling this because I recently bought a new one and no longer need it. I used it for live bait fishing for horse mackerel. There are signs of sun damage and it shows signs of use, but there's no rust inside, and I was using it until recently. I've confirmed the weak and strong settings are working. I replaced the stone before, so I don't think it's clogged. I'll ship it with two new batteries so you can test it as soon as it arrives. This is a used item, so please refrain from purchasing if you are sensitive to such things. No returns, no refunds, no exchanges (3N).