Bounty Hunters Discovery 1100 Metal Detector features high-end features for the intermediate user. Large easy-to-read LCD screen. Features three-segment digital target identification, three-tone audio feedback and four sensitivity adjustments. Push-button discrimination and one-touch depth control. Very-low-frequency detectors are best for land use and require you to keep the search coil in motion in order to locate a target. Open 7 concentric search coil generates a strong return signal, when detecting a metal object that is received by the center coil. Discrimination mode allows you to block signals of unwanted items. Automatic ground balance adapts to ground conditions as you hunt. Low-battery indicator. Manufactuers limited five-year warranty. Made in USA. Batteries: Two 9 volt (not included). Application: Coin, relic, jewelry. Length: 44 to 51. Search coil: 7 waterproof open concentric. Frequency: 6.6kHz. Wt: 2.5 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Metal Detectors.