This all-terrain detector offers new and exclusive Garrett technology that makes it ideal for hunting coins, relics, caches, jewelry, and even gold nuggets. Select from either Standard or Professional search modes with enhanced audio features. Pro Mode Audio™: Proportional Audio and Tone Roll Audio™ features allow the user to hear characteristics of a target as they would in a True All-Metal Mode. High-Res Iron Discrimination™: Use touchpads to set iron discrimination in one of 40 levels for precise ability to separate good targets from trash.