The Sennheiser HD 280 Pro Closed-Back Headphones is a significant step forward in Sennheiser's on-going design manifesto. These headphones have been designed to supersede the requirements of a professional audio environment. A collapsible frame, swivelling ear-cups and robust construction are some of the improvements included in these phones, along with more familiar necessities such as high noise attenuation, linear sound reproduction, soft ear-pads for comfort during long exposures and a durable connecting cable. These are excellent monitoring and studio headphones.