Fostex T60RP Headphone, Headphones, Semi-open design, Ortho dynamic, Circumaural with mahogany ear shells, Impedance: 50 Ohm, Sensitivity: 92 dB, Frequency range: 15 - 35000 Hz, Input level: 3000 mW, Weight without cable: approx. 380g, Incl. pluggable ET-RP3.5UB connection cable with 3.5mm stereo mini jack, adapter 3.5mm to 6.3mm stereo jack and carrying case