Hunt all target types and terrains ? including those under the surface. The EQUINOX 800, featuring Multi-IQ Simultaneous Multi-Frequency Technology, premium Bluetooth headphones and 8 custom search profiles, provides lightweight operation and limitless exploration. MULTI-IQ TECHNOLOGY Minelab?s revolutionary technology combines the power of multiple detectors into one, allowing you to effectively search all metals, all soils, all the time.. FULLY WATERPROOF Don?t stop at the beach or the bank, this fully submersible model allows you to detect under the surface of oceans, rivers, streams and lakes up to 3m (10 ft).