Bounty Hunter Junior T.I.D. Metal Detector - The T.I.D. is compact with an ergonomic design that is great for ages as young as 6 years old. 3 target I.D. Categories - Iron, Rings & Other and Coins & valuables. Discrimination control to eliminate unwanted items. Compact, ergonomic design3 Target I.D. Categories Volume proportional to signal strengthDiscrimination control to eliminate unwanted items