JVC Harx700 Precision Sound Full-Size Around Ear Headphone 50mm Neodymium Driver With Deep Bass (Black) Full-size headphones with deep bass sound reproduction with 50mm Neodymium driver unit and ring port structure. Pressure dispersion mesh head pad for comfortable long listening. Features Ring port structure provides high-quality dynamic sound Wide head pad for optimum comfort 6.3mm plug adapter included 11.48ft(3.5m)cord with gold-plated plug Specifications Driver Unit 50mm Magnet type Neodymium Frequency Response8-25,000Hz Nominal Impedance 48ohms Sensitivity 105dB/1mW Max. Input Capability 1500mW(IEC) Cord Length 11.48ft Weight (without cord) 11.64oz Plug Gold plated Accessory 6.3mm plug adapter