The Gray Ghost Underwater is for all underwater or wet applications. User-selectable impedances allow compatibility with all underwater detectors and commercial diving equipment. Solid-state speakers leave sound quality unaffected by depth. This great pair of headphones comes with the underwater-plug connector designed for the Minelab CTX 3030.

User-selectable impedance for compatibility with all water detectors.
Heavy-duty polymer muffs with full-ear surround, soft comfortable cushions.
Special sound-blocking muff design eliminating environmental ambient noise up to 24 decibels.
Backed by a limited lifetime warranty.
Frequency response: 200 – 3200 Hz… only what your detector uses.