The Bounty Hunter Discovery 2200 Metal Detector is an easy-to-use, lightweight metal device, which is designed ergonomically. It features three-tone audio feedback, which helps in distinguishing between valuables and undesirable metals. This lightweight metal detector comes with a headphone jack that can be used with most headphones. You can search for items in wet areas or shallow waters as this Bounty hunter detector comes with an 8" interchangeable, waterproof coil. This waterproof metal detector has touch pad that offers complete control over sensitivity. It operates on two 9V batteries and indicates when the battery is low.