While I was metal detecting Miami Beach , Fl I was approached by a group of people who asked me to find wedding 2 rings lost in the dry sand. I followed them to a area about 7 x 7 feet . At first I didn’t get any targets . But after searching for quite a while I heard a faint signal and found one ring. after that I still wasn’t hearing any targets. I kept going and I eventually fond the other ring. They were very thankful.