Building upon the same strong foundation of high accuracy and natural, well-balanced frequency response of the SRH840, the SRH840A professional monitoring headphones are optimized for critical listening and studio monitoring. A precisely tailored frequency response and 40 mm neodymium dynamic drivers deliver rich bass, clear midrange and extended highs. A wide, padded headband and collapsible design combine with Shure durability to provide the ultimate listening experience. T  he SRH840As includes a threaded 1/4" gold-plated adapter and carrying bag.