Tested mine today in the Atlantic ocean. Found 5 pieces of aluminum Will say we had some wave action with a Northern current. Compared to my blue excal 800 I usually water hunt with I felt like I was getting a work out. Worse thing is from the handle being so big when it got wet it got slick and made my thumb joint start hurting. Plus the arm cuff is too flimsy to be in our waves. Had to run mine in beach 2 in the water. Headphones I made worked ok. Probably be a lot better with some muffs over them. But I can get used to them.