Additional Details ------------------------------ Product description: Powerful ZILOG Z-86 computer circuit for accurate detectionGround Trac automatically balances detector to soil conditionsLCD target readout displays probable type of metalDepth indication readout3-mode discrimination8" interchangeable waterproof search coilSensitivity control notch and auto notch modesComfort hand-grip extended arm-rest S-Rod handle systemHeadphone jack Material: Metal