Cyclone MC1 Analog Metal Detector for youth with durable design built to withstand the rigors of child use; Simple eliminator control can eliminate most unwanted items; Visual Target indicator with battery OK test; Can detect coins up to 5" deep and larger metal up to 24" deep; 6.5" circular coil is submersible up to 24" deep; Volume level varies depending on signal strength; Adjustable from 26" to 36" total length; Uses (2) 9 volt alkaline batteries (not included).