HA-FR6 Driver Unit 11mm Magnet type Neodymium Frequency Response 10-20,000Hz Nominal Impedance 16ohms Sensitivity 103dB/1mW Max. Input Capability 200mW(IEC) Cord Length 1.0m Weight (without cord) 4.1g Plug iPhone compatible, Gold Plated one-button remote control & mic yes Accessory S/M/L silicone ear piece