What sets the Amphibian II apart from other metal detector headphones is the thick
and FMF mode stabilizes in wet salt sand where single-frequency VLF detectors produce ground noise
This creates its own electromagnetic field in the target objects
Four-band equalizer and full audio library: shape tone response to emphasize mid-conductors or cut low-frequency iron hum
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Groundtech A2 3D Ground Scanner & PI Metal Detector adjustable-closure What sets the Amphibian IIThe Groundtech A2 is a next generation hybrid system that combines a professional grade 3D ground scanner with a heavy duty 1 kHz pulse induction metal detector in one compact, standalone unit. Built for professional treasure hunters, relic seekers, and archaeologists, the A2 uses upgraded MFS 3 dual sensors to reach scanning depths of up to 65 feet (20 meters), mapping buried metals, graves, rooms, and cavity structures such as tunnels while its