You are looking at the most compact amphibious metal detector in the world. Not only does this metal detector contain today s most innovative electronics it is the first detector that has all the electronics built into the headphones. By eliminating a control housing weight of the detector is significantly reduced and so is your arm fatigue. When you travel the Headhunter also takes up very little luggage space. All of this is possible because of our innovative microcircuitry and packaging. The Headhunter has been engineered to perform in both salt and fresh water but it is also just as effective on land as well. The headhunter is a true universal application metal detector and will open up a whole new world of excitement for you. Tens of thousands of valuables are continuously lost each year and now you can start finding them Check out the new updates for the improved model. Technical Specifications:. Operating Search Frequency: 2.4kHz quartz crystal controlled. Searchcoil: Available with exclusive 8 or alternate 10inch MegaDEPTHTM heavyduty negative buoyancy coplanar RF shielded searchcoils with underwater connectors. Headphone Transducers: Permanently encapsulated highoutput piezoelectric. Audio Frequency: 400 Hz. Headphone Earcups: Heavyduty polymer full ear surround; extra comfortable soft cushions ambient noise blocking up to 24 decibels heavyduty eartoear wiring with new seals for added strength. Headphone Frame: Adjustable padded headband no screws no wire frame no rust compact carry foldable design . Controls: Stay put discrimination with segmented click positioning; fullrange volume and sensitivity for fine adjustments. Search Mode: Silent search slow motion full range discrimination. Operating environments: Salt fresh water to 6 feet beach rain storms land. Cable: Straight heavyduty coil wire for added strength. Hand Grip: Soft foam anatomic for allday use. Rods: Selfdraining anodized aluminum with durable baked on black powder coating.