Fisher Gold Bug Pro Metal Detector Black Standard. Its fast retune speed and biaxial Searchcoils create superb target separation with impressive depth. V-Break the industry's first Variable Breakpoint tone discrimination system allows user control of the multi-tone Audio ID system. This feature helps distinguish iron targets with a distinctive low audio tone while non-ferrite targets like gold induce high tones. Tone discrimination combines with a dead-accurate Visual ID system to give gold prospectors a vital new tool in finding gold without having to dig any iron targets. An expanded 40-Point Iron ID target range helps differentiate between larger iron objects and smaller nails and pieces. The way it minimizes the masking effects of ferrous targets near non-ferrous targets is simply amazing Coin and relic hunters marveled at how well the Gold Bug Pro performed with our legendary 11"DD Searchcoil and the Gold Bug DP was born. Two more unique features are the real-time display of the Ground Phase value and an Fe3O4 meter that indicates the amount of mineralization present. These features monitor changes in soil conditions to locate and trace black sand concentrations where gold is commonly found. The Ground Balance system handles the toughest of ground conditions capable of balancing all the way to salt. No longer do you need a specialized detector for prospecting and another for coins and relics; the Gold Bug excels at both Specifications for Fisher Gold Bug Pro Metal Detector: Manufacturer: Fisher Water Resistance Level: Waterproof Coil Finish: Black Battery Type: 9v Battery Life: 15 - 20 hours Battery Quantity: 1 Weather Resistance: Waterproof Features of Fisher Gold Bug Pro Metal Detector Finds the Smallest Gold Nuggets in Highly Mineralized Soils V-Break; Industry's First Variable Breakpoint Tone Discrimination System Ground Grab Computerized Ground Balancing Real-Time Computerized Ground Balancing V.C.O. Audio in All Metal and Discrimination Mode Independent Control Over Treshold and Gain Continuous Ground Condition Readouts Ground Phase Value Indicates Type of Mineralization Fe3O4 Graphic Indicates Amount of Mineralization Static Pinpoint with Depth Indicator Dual Headphone Jacks 19kHz Operating Frequency Ultra-Simple User Interface Ultra-Lightweight (2.5 lbs.) Recommended for Gold Nugget/Prospecting Package Contents: Fisher Gold Bug Pro Metal Detector Fisher GOLDBUG-PRO: Gold Bug Pro Metal Detector Black Standard