Like the original Fisher Gold Bug metal detector, the Fisher Gold Bug-2 is designed for finding gold nuggets. It offers extraordinary sensitivity, ultra-high frequency. In fact it is one of the highest frequency gold prospecting detectors available. Exceptional, it offers iron-discrimination, dust and moisture resistance, audio-boost and the ability to operate in extremely mineralized soil with a 3-position mineralization switch. All of this plus it is backed by Fisher's 5 Year Warranty.