Sony MDRZ7 Hi-Res Stereo Headphones Wide Soundstage Reproduction up to 100 kHz, 70 mm driver units with ALCP for articulate audio reproduction, Balanced output capable for perfect signal separation and sound quality, 4-conductor cable for better signal separation and resulting sound quality Ergonomic ear pads w/3D sewing afford ultra-comfort and powerful bass, Customize with optional cables engineered with Kimber Kable, Silver coated OFC cable minimizes signal transmission loss, Beat Response Control for improved bass and transient response Enfolding structure for total, wrap-around feel and acoustic seal, Inward axis structure delivers optimum fit, Silent joints won't disturb your audio experience, Made in Japan. Cord type: Detachable Y-type Connectivity technology : Wired