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.