QUEST PRO POINTER will help to find Metal Detecting Targets once Identified with your Full Sized Metal Detector. Once you've dug the hole you use the Pin Point to help narrow down what the Larger Metal Detector has identified, such as Coins, Jewellery, Rings and other Valuable items from Dig Hole. Makes finding the actual target soo much easier, especially in high trash areas!This is the PRO Version of PIN POINTER which is more powerful and has In-Built LITHIUM ION rechargeable battery so you don't have to keep buying new batteries when they run flat. This PRO PIN Pointer is also Fully Water-Proof Submersible to 20 metres and is tolerant to highly mineralised ground conditions.ABSOLUTELY ESSENTIAL FOR ANY LEVEL OF METAL DETECTING !!