The Bounty Hunter (R) Tracker IV is a user friendly metal detector that requires minimum operating skill and delivers effective performance in various conditions. The all-metals mode detects many types of metals such as iron and aluminum to gold and silver. The two-tone audio mode classifies metals for value and the discrimination mode eliminates unwanted items. The Tracker IV's ground balancing detects the best results in all kinds of soil. FEATURES: All-metals mode detects all metals from iron and aluminum to gold and silver Discrimination mode eliminates unwanted metals Two-tone audio identifies valuables Automatic ground balancing "sees through" ground minerals