Gray Ghost Amphibian Headphones Review: Wired, Submersible, and the Only Real Option Underwater

Depth rating and a sound-isolation design built by a company that has specialised in detector audio for a long time, rather than an accessory added to a general product line. Minelab publishes its own Equinox Waterproof Headphones as wired and waterproof, which is the manufacturer-matched option. DetectorPro's Amphibian line publishes a specific 200 foot rating and describes muff design specifically engineered to block ambient noise by up to 24 decibels, which is a meaningfully deeper stated rating and a more specific noise-isolation claim than a general detector accessory typically carries.

That depth matters less for the average detectorist wading a river mouth than it does for anyone doing genuine scuba work, but the noise isolation matters to almost everyone: a detector's target tones are often subtle, and a headphone built to cut 24 decibels of ambient noise, whether that noise is surf, wind or a running motor, is doing real work for your ability to hear a faint deep signal. The wired vs wireless comparison covers where that isolation advantage extends beyond water use.

Figures taken directly from each listing.

Connection type decides whether a set works underwater at all, before fit or noise isolation even enter the comparison.

Start with what you are giving up rather than gaining. At $169.95, this set costs close to what Minelab charges for its ML105 wireless headphones, and it adds a cable running from your ears to the control box, plus the weight and bulk of muffs built to seal out noise rather than sit lightly on your head. On dry land, a wireless set is simply more pleasant to wear for a full day, and nobody buying this set should expect otherwise: you are paying for a capability wireless cannot offer at any price, not for comfort.

Second, and this is the point worth repeating plainly: wireless headphones do not work underwater at all, regardless of brand, protocol or how the box describes them. That is a fact about radio and Bluetooth propagation in water, not a limitation specific to any manufacturer's engineering. If your detecting plan includes submerging the machine, a submersible wired set like this one is a requirement, not a nice-to-have alternative to your existing wireless pair, and budgeting for both a wireless set for land days and a wired set for water days is the normal answer for a serious water hunter.

Third, fit specificity. DetectorPro builds this model for the Manticore and Equinox line specifically, which is an advantage if you own one of those machines and a limitation if you do not. A Nokta owner going underwater should look at Thresher Submersible Headphones for Nokta instead, and a Garrett AT owner should look at Garrett Submersible Headphones, because the connector and fit are matched per platform rather than universal.

Published owner reviews of Gray Ghost headphones generally, and the Amphibian line specifically, describe the noise isolation as the standout feature, with owners crediting the muff design for making faint, deep signals audible in windy or noisy conditions where a standard headset lets the signal disappear into ambient noise. Durability of the cable and muff-to-muff connection also comes up consistently as a reason owners keep this brand in rotation for years rather than replacing headphones each season.

The recurring complaint is the one the specification predicts: weight and heat compared to a wireless set, especially on land where the submersible design is not actually needed. Owners consistently describe a two-headphone rotation as the practical answer, wireless for ordinary land sessions and this set specifically for the days the machine goes in the water, rather than trying to make one set do both jobs well.

Buy it if:

• You submerge a Minelab Manticore or Equinox regularly.
• You want a specific, deep published water rating rather than an unstated one.
• You hunt in wind, surf or other ambient noise where isolation genuinely helps.
• You already own or plan to buy a separate wireless set for ordinary dry-land days.

Skip it if:

• You never submerge the machine, where a lighter wireless set like Minelab ML105 Wireless Headphones is more comfortable.
• You own a Nokta or Garrett machine, where a matched submersible set fits better.
• You are trying to save money on a first pair of headphones.
• You dislike cables and are not planning genuine underwater use.