Digital Display Metal Detector; adjustable discrimination * Notch Discrimination: This metal detector ignores junk metals and finds just the metal types you are searching for * Metal Detector Features 3 Audio Tones: "Low" for gold rings, nails, bottle caps or nickels; "Medium" for gold, aluminum pull-tabs. zinc or copper; "High" for brass or silver * 8-inch open-face waterproof metal detector search coil for hunting in muddy conditions or in shallow water * IN THE BOX: Metal Detector, Sand Sifting Scoop; Headphones and Carrying Case