"The HD 380 Pro headphones from Sennheiser provide professional-quality sound in a rugged and lightweight design. The headphones use E.A.R. (Ergonomic Acoustic Refinement) technology and patented Duofol diaphragms to reduce comb filter effects and distortion, to provide you with clear, natural sound with plenty of detail. The headphones have a closed-back design with thick around-ear cushions to provide up to 32dB of natural noise isolation, as well as long-lasting comfort. The padded headband is adjustable to fit virtually any head size for a snug fit. The single-sided coiled cable provides a variable amount of slack and is resistant to tangles. It is also detachable for easy replacement. The standard 3.5mm stereo mini plug and screw-on 1/4"" adapter provide wide compatibility with a variety of consumer and professional audio devices. A slimline carrying case is also included."