The new search platform is designed around 3 main frequencies that are quickly accessible using the new XP DEUS 4.0 software. This new High Frequency (HF) search coil has the advantage of integrating 7 large offset stages (sub frequencies) under each main frequency, thus offering you the choice of 21 frequencies. This XP DEUS 9" Round Waterproof DD High Frequency Search Coil is extremely sensitive and operates from 13kHz to 59kHz. The Main Frequencies for this coil are: 13 - 15.7kHz, 26 - 31kHz and 50 - 59kHz.