Neumann's first headphones are the $499 NDH 20 for pro studio use - The Verge
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Neumann NDH 20
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Neumann NDH 20 Closed Back Monitoring Professional Studio Headphones Gaming, Mixing, Mastering, Video or Audio Production, Performing, 3M straight cable w 1'8” stereo connector and 1/4” adaptor: Amazon.co.uk: Musical Instruments & DJ