The big search coil offers accurate detection of 6 types of metal while 3 tones signal you to different types of them.
. Foldable Metal Detector for Adults Professional & Waterproof Gold Detector Features: 10'' x 7'' big search coil is IP68 waterproof, 180° rotatable and adjustableProvides accurate detection of 6 types of metal and 12'' detection depthFeatures 4 search modes including all metal mode, pinpoint, notch and DISCSpecification: Color: Yellow + BlackMaterial: Nylon + ABS + 600D Oxford FabricFold Description: This professional metal detector will be a wonderful helper for your treasure hunt. And the control box with LCD display is easy to read.