Whether you're hunting coins

Iron-infested relic sites

Clear audio response for underwater target detection

Computer-designed spiral wheel with seven spiral leads

9-V batteries

Garrett 1/4" Headphone Adapter for Garrett AT Pro, Infinium & Sea Hunter Models - 1626000 GOLDBUG-PRO Whether you're hunting coinsAllows land use headphones with a 1 4? male jack to be used with the Garrett AT Gold, AT Pro, Infinium and Sea Hunter models. (Not intended for submerged use.) OPERATION NOTES: Inserting the headphone plug into the connector will provide sound from the headphones only and will automatically disable the detector's speaker. This automatic speaker disable feature requires the input impedence of the headphones to be 10,000 ohms or less. Note that some non