National Geographic Digital Metal Detector w/Headphones. The National Geographic Digital Metal Detector can put you on a path to discovering coins jewelry and artifacts by alerting you to metals buried up to 12 inches below the surface and providing critical information about these metals using seven tone alerts and identifiers on the LCD screen. This metal detector has a large multi-functional LCD display that allows users to customize their search criteria by setting the devices sensitivity and the discrimination range which filters out junk metals. It also provides critical information on metal type and approximate depth before the digging begins. After the initial alert the pinpoint function will help users narrow down where to dig. To give users more search options the detectors coil is water-resistant so that it can be used to explore shallow puddles shorelines and other damp areas where treasures can be easier to excavate. To provide extra comfort during lengthy searching sessions the device has a padded arm cuff and adjustable length. It also comes with a pair of headphones to discern the difference between tone alerts while in noisy locations Specifications for National Geographic Digital Metal Detector with Headphones: Manufacturer: National Geographic Included Accessories: Headphones Condition: New Package Contents: National Geographic Digital Metal Detector with Headphones National Geographic 80-20012: Digital Metal Detector w/Headphones