Beyerdynamic Custom One Pro Plus, studio headphone, dynamic, closed, impedance 16 Ohms, pressure level 96dB, frequency response 5 - 35.000 Hz, weight 290 g, New Custom Sound Slider with four different profiles, New variable noise reduction system without batteries, design changeable ( colored covers, rings, earpads and headbands), optionally headset article-nr. 310810, exchangeable cable, incl. 1,5 m cable with 3,5 mm plug and 6,3 mm adapter, 1,3 m cable with mic and 1-button-remote, 16 covers (PVC) for changing