The NC510B Sound Clarity Active Noise Canceling Headphones from Able Planet provide award-winning sound quality and effective noise cancellation in a compact and comfortable package. The headphones feature patented LINX audio technology, which provides maximum clarity while reducing distortion, filtering unwanted sound, and restricting electromagnetic interference. The result is a natural, immersive sound experience that brings out all of the detail in your music.The adjustable, padded headband provides a snug fit for practically any head size. Swivel earcups with thick around-ear cushions provide lasting comfort and natural noise isolation. Active noise canceling technology is also built-in to significantly reduce the impact of unwanted environmental noise. The headphones can also operate in passive mode without cancellation if the batteries happen to die, or if you don't want the cancellation enabled.The detachable, single-sided cable helps to minimize tangles, while an inline volume control lets you make on-the-fly adjustments. The cable has a standard 3.5mm plug with 1/4" and airplane adapters for wide compatibility with consumer and professional audio devices, as well as in-flight entertainment systems. A hard shell case is included for convenient storage.