HardwarePorta ProUsed by 3 peoplekoss.com ↗“For mobile listening on my iPhone I use Koss PortaPros.”Mark Richardson Interview, Editor-in-chief (Pitchfork) · via Uses ThisAlso used byNoah KalinaInterviewGreg WohlwendInterviewPeople who use Porta Pro also useMacBook Pro3Adobe Photoshop21Password (iOS)12M Red1A119 V31After Effects1Air Remote1Airport Express1