Thank you, fellas! My T2 has a 2+(plus) option where you hear a low pitch for iron and high pitch for non-ferrous...BUT, the two pitches have infinite "tones." The pitches can be longer or shorter, clipped, weak, full, depending on the depth, size, etc of the target. This is a GREAT feature once you learn the language. My Ace series detectors only have a low pitch and a high pitch ("bell tone"). They didn't change tone at all. My question was- does the etrac have this feature or not?....and I think Marjam may have answered it- "Also it is just like it sounds, low grunts for iron, all non ferrous targets have a single high tone. Aluminum, coins, gold, etc. all have the same high tone in this setting." I just want to confirm this. Thank you!!