This discriminating detector features a “Trash Eliminatorcontrol–which means you’ll find more coins and valuables and less junk. High-tech control panel has sensitivity adjustment and an intensity meter. Headphones included. Detects coin-sized objects up to 6deep; larger objects up to 2′ deep. 7 3/4diameter search coil. Uses two 9V batteries not included. 49l x 7 3/4w.