This little detetor is hot and the ID is 2nd to none. Dug 3 three ringer mini-balls in hard dry dirt. All were in the 8-9" range and one had a large square nail in the same hole. I thought I had sterilized this spot with the F75 LTD and Etrac. The modulated tone is a real helper in trash areas being able to hunt totally by sound and just dig the faint targets. I think I have a herd of other detectors that just became obsolete!