Wide applications: This metal detector can be used in the backyard, at shoreline, in the mountains or fields afar to find treasures, let you enjoy the fun of treasure . With 11 inch or 13 inch waterproof search coil(can choose) for cover the maximum amount of ground efficiently and for the deepest ground penetration. Intelligent identification of gold, silver, copper and iron,Different metal display with different values and different sounds. Discrimination mode: When the detector emits different tones for different types of metals,and when the detector"eliminates" certain metals,we refer to this as the detector"discriminating" among different types of metals. Discrimination is an essential feature of professional metal detectors. Discrimination allows the user to ignore rubbish and other undesirable objects. Pinpointing mode: Pinpointing is the process of finding the exact location of a buried object. long-buried metals can appear to the eye exactly like the surrounding soil, and can therefore be very hard to isolate from the soil., Manufacturer: CFWWSAQ