"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..."

Beyerdynamic DT-150 Dynamic Stereo Headphones - closed back, 250ohm impedance, 5Hz-30kHz, weight 385g with cable, 318g without cable, detachable cable, includes 3,2m cable (K100.07-3.0m). Colour: Charcoal Grey. Weight: 250g

"Yamaha HPH-MT8 studio monitor headphone - application area: studio, music production and listening to music, foldable, over-ear-design, closed-back, 37 ohms impedance, frequency range: 15 - 28000 Hz, maximum input power..."