The DetectorPro Gray Ghost Ultimate metal detector headphones give you enhanced sound quality made possible by special speaker elements in a tuned cavity design. This design means greater sensitivity to tiny targets and more raw power at full volume. Durable push-buttons are found in shielded locations by the main strain relief and a special limiter circuit gives you a smooth reduction at excess volume levels. Single rotary volume control with stay put segmented click positioning. Push-button selector switch for metal detector compatibility without adapters. Push-button switch activates limiter. Special low-noise signal limiting circuitry protects your hearing from high volume hits without batteries. Heavy-duty muff-to-muff connection cable. Heavy-duty coiled cord with a special three conductor 1/4-in 90-degree angle stereo connector. Industrial grade Nylon 6/6 pigtail strain relief on cord termination. Compact carry and storage foldable design. Heavy-duty polymer muffs with full-ear surround soft comfortable cushions. Adjustable padded headband. Speaker elements are the ultimate in sensitivity efficiency durability and signal quality. Special sound-blocking muff design eliminating environmental ambient noise up to 24 decibels.