FUSO Fish Finder FE-88A Junk Item

Thank you for looking.

I purchased this item on Mercari the other day, but it makes a beeping sound when I plug it in and won't turn on. As you can see from my purchase history, the listing only stated This is a used item and did not mention it was junk.
I believe the seller was extremely malicious.
It's my fault for confirming receipt without checking the operation, but...

I am listing this item as a warning. (I am not intending to sell it, so I have set a high price, but I will sell it for cheap if you are looking for parts or for repair purposes.)