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 (the highest operating frequency on the market), iron-discrimination, dust and moisture resistance, audio-boost and the ability to operate in extremely mineralized soil with a 3-position mineralization switch. Backed by Fisher"s 5 Year Warranty.* Powerful 71kHz Operation for extreme sensitivity to small gold nuggets* "IRON DISC" mode rejects iron (trash) targets and hot rocks.* Resistant to dust and moisture.* Boosts audio signal of small and deep targets* Convertible to hipmount or chest mount* Weighs only 2.9 lbs.* Quartz-crystal locked electronics.* Takes only two, drop-in, 9-V batteries* Dual-knob ground control for coarse and fine adjustment.* 10" Elliptical Search Coil* 5 Year Warranty