Amzdeal Metal Detector Treasure Hunter Gold Digger with Discrimination and All-Metal Two Modes LCD Display Two Operation Modes: All-Metal mode, Discrimination mode;help you search various metal with auto ground balance and high sensitivity and discriminates the unwanted metal targets,you can control sensitivity Identify Categories:Amzdeal Metal Detector can identify sliver, iron and other materials that intermediate three categories,When different metals are detected, it sends out a different frequency of sound and emits a different light Adjustable stem and Waterproof search coil available for searching for metal objects under shallow water,The LCD display the sensitivity level and metal typed detected Detecting Depth: 15cm.Perfect for treasure hunters hunting for coins, relics,jewelry,gold and silver indoors and outdoors If you are not 100% satisfied, we offer a full refund, no questions asked, and a 1-year warranty