Pyle PHMD1 Treasure Hunter 1000 Metal Detector with Adjustable Sensitivity, Discrimination and Headphone Jack Full-Featured and Easy-to-Use Metal Detector - Find Precious Metals and Treasures Buried Underground Ability to Differentiate Ferrous and Nonferrous Metals - High-Sensitivity - Volume Control - Tone Signals Adjustable Sensitivity and Adjustable Discrimination - 6.7'' inch Waterproof Submergible Search Coil Top Mounted Control Box with View Meter - Target Pinpoint Ability with Easy Pinpoint Button Comfortable Arm Support - Adjustable Aluminum Stem - 3.55mm Headphone Jack - Requires 6 'AA' Batteries