The beyerdynamic DT 900 Pro X Open-Back Headphones are built for mixing monitoring and mastering. This is thanks to a transparent wide and detailed sound stage designed to capture every sonic nuance. Get stunning sound wherever you are. The DT900s Stellar.45 driver ensures top-grade audio even if you are listening from your laptop or phone. Its innovative design takes the DT 900s above your average studio headphones. And for those long mix sessions get top comfort with velour ear pads and an adaptable headband. All this in a rugged design conceived and built in Germany out of the top components.