Editorial Review Overview The K 240 Studio headphones from AKG feature a semi-open circumaural design, and use patented Varimotion technology and extra-large transducers to deliver extremely precise, detailed sound. The headphones have a self-adjusting headband, as well as thick around-ear cushions for lasting comfort. The single-sided detachable straight cable resists tangles and can be easily replaced. The cable has a gold-plated 3.5mm plug with a 1/4" screw-on adapter to provide wide compatibility with consumer and professional audio devices. It comes with an Auray COHH-1 Headphone Holder with Padded Cradle and Adjustable Angle attaches to either a horizontal or vertical surface in order to support one full-sized pair of headphones and a 25' Extension Cable. In the box AKG K 240 Studio Professional Semi-Open Stereo Headphones Gold-Plated 1/4" Adapter Detachable Cable Limited 2-Year Warranty Auray Headphone Holder With Padded Cradle and Adjustable Angle Limited 1-Year Warranty 25' Extension Cable Complete with a 90-day warranty