Featuring specially designed 15.4 mm HD drivers with a permendur magnetic circuit, and diaphragms with a diamond-like carbon (DLC) coating, the ATH-CM2000Ti in-ear headphones deliver exceptional full-range audio, and are capable of Hi-Res Audio reproduction.The headphones' rigid housings are constructed of pure titanium to greatly reduce unwanted resonance, and they feature A2DC (Audio Designed Detachable Coaxial) jacks to accommodate the two 1.2 m (3.9') detachable cables included with the headphones. One cable is equipped with a standard 3.5 mm 3-pole stereo mini-plug; the other has a 4.4 mm 5-pole balanced mini-plug that allows the headphones to be used with the latest high-spec audio players. Also included are earpads, a hard carrying case, and cleaning cloth.Each pair of the exclusive ATH-CM2000Ti in-ear headphones is individually identified by a laser-etched serial number.