With your Metal Detector, you can hunt for coins, relics, jewelry, gold, and silver just about anywhere. The Metal Detector is versatile and easy to use. Its features include: Three-Tone Audio Discrimination - sounds distinctive tones for different types of metals,to make target identification easier. Analog Meter -shows the probable type of metal being detected. Auto Tune - lets you tune your detector quickly for accuracy. Arm Support - lets you carry and operate your detector comfortably. Waterproof Search Coil - lets you use the detector to search under water. (The search coil is waterproof, but the detectors control housing is not waterproof.) Adjustable Stem - lets you adjust the detectors length for comfortable use. Headphone Jack - Lets you connect head phones (not supplied)to the detector. Low Battery Indicator - Let you know when it is time to replace the batteries.