Description:-Using the top technology, it is widely applied ti detect underground metal objects. It is one of the most convenient and most sensitive metal detector. Indication Mode: Mechanical Indicator Mode, Sound Mode-Detecting metal objects buried underground. Widely used in security check, treasure hunting, material check etc.-Volume - To adjust the volume level of speaker and headphone-3.5mm Earphone - Lets you connect headphones (not supplied) to the detector; View Meter and Pointer - The meter pointer swings to the right if metal is found.-Waterproof Search Coil - Lets you search for metal objects under shallow water; Adjustable Stem - Lets you adjust the detector's length; Low battery indicator.Specification:Power: 2x 9V (6F22)Current: Standby: 10mAMax: 70mAIndication Mode: Mechanical Indicator Mode Sound ModeDetector Diameter: 6.5 inchesProduct Size: 133*16.5cm/ 52x 6.5 inchPackage Includes:1 piece Metal Detector1 piece User Manual