Pyle(R) Sports PMD58 Metal Detector Pinpoint/Handheld Pinpointer Locator • Improves metal detection locating ability;• Waterproof & submersible probe tip;• Used for placement in the ground, dirt, sand, water & more;• Rotary-control sensitivity adjustment;• Vibration + LED light detection alerts;• Built-in speaker for audible sound alerts;• Requires one 9V battery;