Beyerdynamic DT 770 PRO 250 ohm | Scandinavian Photo
beyerdynamic DT 770 M Monitoring Headphones, 80 Ohm | Gear4music
Amazon.com: beyerdynamic DT 770 PRO 250 Ohm Over-Ear Studio Headphones in Black. Closed Construction, Wired for Studio use, Ideal for Mixing in The Studio : Musical Instruments