Professional semi-open dynamic headphones. Freshly-developed proprietary Fostex 40 mm drivers, and specially-tuned housings for accu-rate sound reproduction and serious monitoring. Each package contains two types of ear pads and two types of detachable cables (straight and coiled) so that the owner can tailor the headphones to their own preference. Impedance: 250 ohm. Sensitivity: 92 dB / 1 kHz, 1 mW. Frequency response: 5 Hz - 35 kHz. Max. SPL: 100 mW. Weight: 308 g. Accesories: Carrying bag, 3,5 mm adapter.