Got out in the water for possibly the last time for the season. Took out my Brand"X" detector for the first half of the day. Got lots of coins and a couple pieces of junk jewelry, after lunch I took the PRO and went back to the same area, BAM second target was the thing gold bracelet( Brand "X" did not even beep on it in an air test), then came the Tungsten ring, silver earring, BAM! 10KT Gold ring which was cracked( my buddy has a same Brand"X" detector) and I call him over to run the broken ring under his coil"NOTHING". Then I push it together to make contact to each end and that's the only way his detector would beep on it. PRO beep nice and loud on it. The PRO might not be the deepest. but it sure is hot on small gold targets!! JMO