If you’re looking to get into the hobby of treasure and relic hunting, then start off right with X-Terra. It has an ultralightweight, balanced design with high-precision 7.5kHz VFLEX technology on the waterproof concentric coil. It also accepts two frequencies – 7.5kHz for large, deep targets and 18.75kHz for small, shallow targets. To change frequencies, all you have to do is change coils, not whole detectors. Includes depth and battery-level indicators. Requires four AA batteries (not included). Imported.