Additional Details ------------------------------ Product description: These are the Original Gray Ghost Headphones with the shorter cord that does not get tangled up while detecting. Our Gray Ghost Headphones have been custom designed specifically for metal detector users. Start hearing those ?ghost signals? others are missing. Our headphones are engineered rugged, tough, and made to stand up to outdoor use. Gone are the days of wimpy phones that break on the littlest twig? gone are the days when outdoor noise kept you from hearing the deepest targets? gone are the days when headphones wouldn?t stay on your head? gone are the days of discomfort and loss of concentration? gone are the days of frustrating two-knob volume adjustments. Technical Specifications: Single rotary volume control with ?stay put? segmented ?click? positioning. Selector switch for metal detector compatibility with all single-output metal detectors without adapters. Heavy-duty muff-to-muff connection cable. Heavy-duty coil cable with special 1/4?, 90 degree angle stereo connector. Compact carry and storage foldable design. Heavy-duty polymer muffs with full-ear surround, soft comfortable cushions. Adjustable padded headband? no screws, no wire frame, no rust! Speakers designed for maximum sensitivity, efficiency, durability, and signal quality. Special sound-blocking muff design eliminating environmental ambient noise up to 24 decibels. Impedance: 150 ohms nominal. Backed by a limited lifetime warranty.