Featuring dual phase push-pull drivers of different diameters (9.8 mm and 8.8 mm), the ATH-CK2000Ti in-ear headphones deliver exceptional full-range audio, and are capable of Hi-Res Audio reproduction. In the unique push-pull system, the drivers face each other, but are wired out of phase, providing lower harmonic distortion and improved damping and bass frequency control. The use of drivers with different diameters improves high-frequency response. Audio is further enhanced by the headphones’ permendur magnetic circuit and a diamond-like carbon (DLC) coating on diaphragms. Dual phase push-pull drivers (9.8 mm + 8.8 mm) with a permendur magnetic circuit are capable of Hi-Res Audio reproduction Diamond-like carbon (DLC) coating on diaphragms helps to deliver exceptional full-range audio Rigid, pure-titanium housings reduce unwanted resonance Two detachable 1.2 m (3.9') cables with A2DC (Audio Designed Detachable Coaxial) connectors at the headphones: one with a 4.4 mm 5-pole balanced mini-plug, the other with a 3.5 mm 3-pole stereo mini-plug Includes silicone eartips (XS/S/M/L), hard carrying case, and cleaning cloth Each pair of headphones is individually identified by a laser-etched serial number