Features: Open diffuse field studio headphone Robust spring steel headband Single sided cable Soft inner headband Gold plated stereo jack plug (3.5 mm) & 1/4 adaptor (6.35 mm) The reduced weight of the diaphragm and moving coil in combination with a expertly tuned frequency response results in a similar pulse characteristic as electrostatic headphones and a natural, balanced response. Soft ear pads and adjustable sliding earpieces combined with a very flexible coiled cable guarantee comfortable listening for long periods. Specifications: Transducer type: Dynamic Operating principle: Open Nominal frequency response: 5-35,000Hz Nominal impedance: 250 ohm per cartridge Nominal SPL: 96dB SPL Nominal THD: <0.2% Power handling capacity: 100mW Sound coupling to ear: Circumaural Nominal headband pressure: approx. 3.5 N Weight (without cable): 250g Length and type of cable: 3 m / coiled cable Connection: Gold plated stereo jack plug (3.5 mm) and 1/4 adapter (6.35 mm)