FAMOUS TRAILS MD7030 Md7030 Discriminator Ii Metal Detector • 3 Distinctive Alerts For Different Types Of Metal • Ferrous/Non-Ferrous Discriminator Distinguishes Iron/Steel From Silver/Gold • Ground Control Tunes Out False Signals In Areas With Profuse Minerals • View Meter & Pointer With Ferrous & Non-Ferrous Indicator Lights • Side Mounted .125 Headphone Jack • Requires Two 9V Batteries • 5-Year Warranty