Fostex TH-900 mk2, Reference Headphones with Interchangeable Cable, Neodymium magnet driver with 1.5 Tesla magnetic flux density for impressive dynamics, Foster / Fostex ""Biodyna"" diaphragm for a refined, resolution sound reproduction, Housing is made from Japanese cherry birch for excellent acoustic characteristics, ""Urushi"" lacquer finish - traditional artisan handicraft, Fostex logo on the headphone housing is made from platinum foil, Protein leather ear pads (obtained from eggshell membrane), Cable made from 7N OFC copper (99.99%), and the robust connector casing from duraluminium, Incl. headphone stand and transport bag@+*Technical data:*@+@+, Dynamic, Driver: 50 mm neodymium magnet / 'Biodyna' diaphragm, Impedance: 25 Ohm, Sensitivity: 100 dB / mW, Maximum input: 1800 mW, Frequency response: 5 - 45,000 Hz, Weight: 390 g (without cable), Detachable 3 m cable, 6.3 mm unbalanced stereo jack, Weight: 120 g (model ET-H3.0N7UB)