Headphones New headband, Closed, Circum-aural, 106 mm Driver, Neodymium magnets, Impedance: 20 Ohms, Transmission range: 5 - 20,000 Hz, Boundary sound pressure level: 130 dB, Leather elements, Includes 1.9 m cable with...

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,...'

"Studio headphones Closed back, Circumaural, Impedance: 36 Ohm, Sound pressure: 112 dB SPL / V, Converter: 53 mm, 1.5 Tesla magnetic-system, Ultralight two-layer voice coil, Transmission range: 5 - 54,000 Hz, Rated load..."