Sound System Metal Detectors
Metal detectors with an electromagnetic sound system That are more specialized in detecting raw gold, coins, Lost Gold and precious metals at a few depths and close to the surface of the earth where the depth of this system ranges from 1 meter to 5 meters underground.
The audio system devices are characterized by ease of use and very suitable for beginners and amateurs, the components of the device are very simple which is the device arm and the search disk which is easy to disassemble and install. It is characterized by the property of isolating metals where you can isolate a certain type of metal such as iron so that it does not give a signal to it and focus on precious metals only like gold as It is also distinguished as it is against the water as it can be used on the beaches. The audio devices are mostly American made, the most famous of which are American Jarrett and Minlab devices.