Deluxe stereo headphones with Circumaural ear-pads- 50mm driver and high sensitivity neodymium magnet - impedance: 32 Ohms - sensitivity (SPL): 101dB ± 3dB @1kHz - frequency response: 10Hz to 25 kHz - weight: 200g / 7.5oz - foldable, compact design for easy storage- with 6.3mm (1/4") gold plated stereo plug adaptor.