Whether you're detecting in common ground, hunting gold in mineralised soil, exploring trashy fields, or detecting in saltwater beaches — the HF2 coil redefines what precision, power, and versatility mean in metal detecting.Experience unmatched sensitivity across all terrains, from mineralised soils to trashy fields. Switch between fast multi-frequencies up to 90 kHz or mono-frequency mode up to 120 KHz, depending on your target.Equipped with a new 3X more powerful than the previous battery and a swappable design, the HF2 keeps you detecting longer than ever. The result? More depth, better separation, and precision like never before. Frequencies: 21 in Multi mode (9-90 kHz), 49 in Mono mode (9-120 kHz) Weight: 350gDimensions: 24×13 cm (9.5”x5”)Warranty: 5 Years Specifications Wireless coil 21 frequencies Multi: from 9 to 90 kHz 49 frequencies Mono : from 9 to 120 kHz Battery life: 10 hours depending on frequency and power (lithium battery) Weight: 350 gr Fully waterproof up to 20 meters Supplied with coil cover, fixing kit and lower stem 5 Year warranty and LONGTIME certified (design to last) Made in France Note: Purchasing an additional coil for your detector is equivalent to buying a second detector for a very low price. You can use the first coil with your remote control, and use your wireless XP headset to control the second coil. With this configuration you can detect with two detectors: one for you and one for a friend!