JVC HARX500 Full-size Around Ear Headphone 40mm Neodymium Driver (White) The HARX500 is JVC's new high quality full size headphones which features Ear Direct Structure with inclined driver unit for more direct transmission of powerful sound to ear drums. It also features Twist Action Structure for more comfortable listening style. Driver unit is large 40mm high quality neodymium magnet and comes with comfortable cushioned head band. Features Ear Direct Structure with inclined unit for powerful sound. Twist Action Structure for more comfort during prolonged use. High quality sound reproduction with large 40mm neodymium driver unit. Comfortable cushioned head band. Specifications Frequency Response 10 - 22,000 Hz Nominal Impedance 70 ohms Sensitivity 105 dB/mW Maximum Input Capability 1200mW (IEC) Cord Length 11.48ft Weight (without cord) 6.94oz Plug Gold Plated Accessory Plug Adaptor