Professional Metal Detector (Treasure Hunting Model - ATL 3030) Description: This Metal Detector has been manufactured with superb quality and has a great pro performance. Not only does it have high sensitivity, but it can also distinguish between different metal types. This can help users to find lost coins, gold, silver, jewelry and metal objects.  This metal detector is ideal for treasure hunting or shipwreck searching Features: This Metal Detector has two distinct systems: All Metal: "No-Motion Mode": In this setting, detected targets will cause the detector to sound off for as long as the target is under the search coil - motion is not required to detect a target. Motion Disc: "Discrimination," "Notch" and "Auto Notch" modes operate with three tone audio target identification New telescopic handle design for comfort Sensitivity: >=25cm(for Quarters) BUY WITH CONFIDENCE Specifications:   •Display: LCD display with target arrows, indicators include “disc/notch”, “deep sens”, “all metal”, “surf elim” and “low battery” • Audio: 2.5" speaker or headphones • Mechanics & Sensitivity: Distances greater than or equal to 9 inches Working frequency: 6.55KHZ ~ 6.75 KHZ  Z-100 18 bit processor Power: 2 x 9V batteries(Not Included)   • Operation & Control Mode: non-motion for all metal; motion for disc, notch, auto notch Selective Notch Range Manual ground balance more adaptable in mineralized surroundings Control switch: volume, ground balance Control button: mode, adjust(+/-), gnd trac, enter UPC:  859456002355 SKU: ATLMD3030TH