Minelab Waterproof Headphones (for Minelab CTX 3030) coils allows you to adjust the

allows you to adjust the speed of the spiral wheel without affecting the pump pressure

rust resistant

and older generation MINELAB metal detectors

Impedance: 16 ohms nominal

I think they are going to be collecting dust in my garage

Minelab Waterproof Headphones (for Minelab CTX 3030) coils allows you to adjust theMINELAB Waterproof KOSS Headphones. These fully submersible KOSS headphones provide excellent audio for all weather conditions and underwater use. Made for the MINELAB CTX 3030 metal detector. Waterproof to 3 meters. Ideal for shallow wading at the beach, or detecting in shallow streams. Compatible MINELAB CTX 3030