The Goldmaxx Power is an exceptional detector which will find small targets in difficult types of soil (mineralized). It's 18 Khz search frequency makes it very sensitive to targets that are usually very difficult to detect, like thin gold and silver coins, gold nuggets and all other small objects. It has a very fast recovery speed so is excellent on trashy sites. Iron will mask a lot of good targets which are close by.The quick recovery speed enables the Goldmaxx power to find the good targets near the iron. The fast recovery gives superior real time signals which enables more accurate pinpointing. The double D coil gives the detector more coverage at depth. It can be used with XP cordless headphones which makes for more pleasurable detecting.