Sun Ray Pro Gold Headphones for Metal Detectors with extra switch mode for Minelab CTX Metal Detector Improved Coil Cable! - High output 150 ohm (nominal impedance) speaker elements which are certified as hearing aid compatible and are sensitive enough to pick up even the faintest of signals. Aluminum case construction with polymer cones for moisture and sweat protection. Dual multi position "segmented or detent" volume controls with NEW BLACK & "RED" KNOBS to differentiate between the original model and the Minelab CTX 3030 model! "New" Enhanced Limiter Circuit with on/off switch (left side). (For more pronounced reduction in loud blasts from surface targets, while allowing the faintest of signal responses to be clearly heard. Limiter results will vary from one detector model to another. Limiter cirquit is not applicable with the CTX 3030) New "three position" Mode Selector Switch (right side) makes the new Sun Ray Pros compatible with most metal detectors including the new Minelab CTX 3030. NEW TOGGLE SWITCH BOOTS keep moisture and dirt out of toggle switches! "New" comfortable, lightweight dual swivel point ear cups with all "new" soft leather muffs.