Outdoor Gold Hunter Coin Finder Metal Detector - Black &#x2705;Display gauge shows when you have found something and the needle will move to show what type of metal you found &#x2705;Headphone jack so you can listen through your own headphones (headphones not included) &#x2705;Adjustable stem to fit any size of arm or person &#x2705;Able to detect most types of metals and has target discrimination to not respond to iron and most unwanted items &#x2705;Approximate Product Dimensions: 36"L x 6.5"W