[Machine Translation] New mechanism for dramatic bass reproduction. High-quality sound reproduction with a machined aluminum body that suppresses unwanted vibrations. (Product Specifications and Description) / New extra-chamber mechanism that increases acoustic volume and density to produce crisp, heavy bass. Two-position post for both high sound insulation and a good fit. / High-purity machined solid aluminum body suppresses unwanted resonance. The CKS77X's high magnetic force driver, which is exclusively designed for the CKS77X, features a high magnetic flux density magnet in addition to skillful precision press processing for clear mid- and high-frequency reproduction. Highly elastic elastomer sheathed 1.2m cord and L-type plug are ideal for portable devices. / Includes 4 sizes of 2-tone earpieces that match the color of the main unit and a convenient dedicated pouch. Technical data Type: Dynamic Driver: 12.5mm Output sound pressure level: 106dB/mW Playback frequency range: 5~25000Hz Maximum input: 100mW Impedance: 16 ohms Weight (excluding cord): approx. 7g Plug: 3.5mm gold-plated stereo mini (L-type) Cord: 1.2 Accessories: earpieces (XS/S/M/L), pouch