Minelab GPX4800 Metal Detector MPS, DVT & SETA Technology delivers to you the most technologically advanced detector yet making small hard to hear nuggets more obvious Automatic Ground balance options make it easy to adjust the detector to suit all ground conditions Audio adjustments to maximize target signals for your personal hearing Automatic and Manual options to minimize electrical interference With 6 timings it's like having 6 detectors in 1 enabling you to find more gold in more ground conditions Three preset Search Modes gives you easy switch on and go detecting All three can be modified to your personal favorite settings