When maximum search depth is required: XP High End FMF® coil, fast and simultaneous radio multi-frequency, 49 individual frequencies from 4 to 45 kHz, double-D technology 28x34cm diameter for XP DEUS II, weight 570 gr., waterproof up to 20m diving depth, compatible with XP DEUS II, XP patent, 28x34cm coil protector (attached), lower part of linkage, coil screw set, 5-year guarantee, 10-point guarantee metalldetektoren.de