The ath-msr7b headphones give you the latest in high-resolution headphone technology, combining the advanced features of the original ath-msr7 with both standard and balanced connection options for the ultimate portable listening experience. these headphones are equipped with 45 mm true motion drivers with diamond-like carbon coated diaphragms to deliver distortion-free audio reproduction with extended frequency response. The headphones also feature multi-layer air damping technology that reduces unwanted vibration and controls the airflow for superior audio clarity. Completing the package are two detachable y-type cables with a2dc (audio designed detachable coaxial) connectors. One cable is equipped with a standard 3.5 mm 3-pole stereo mini-plug, and the other has a 4.4 mm 5-pole balanced mini-plug, allowing you to use the msr7b headphones with the latest high-spec audio players.