Sharp Edition Metal Detector by Barska features two operation modes, adjustable knobs for sensitivity, discrimination sensitivity and volume control for speaker or headphones headphones not included and a low battery indicator. Operates on eight x AA alkaline batteries not included . 8.5 waterproof search coil allowing you to search in shallow water. Detection results are displayed on an easy to read LCD display that gives a visual indication of what has been found and probably depth of target. 1 Year limited warranty. Features Two operation modes 1. Detects any type of metal 2. Search by ignoring the metal type you do not want Distinctive tones for different types of metals Adjustable Stem from 24 to 34 Inches Padded armrest for hours of comfortable detecting and a rubberized handgrip for a sure hold Barska Optics Metal Detector Sharp Edition Metal detector;LCD 8.5 coil