J&M Elite 629 Series Integrated Headset for Nolan N103, N90 N43 Helmets Only the finest quality components are used in the manuacture of these headsets Superior ambient noise cancelling, wind blocking ability and natural human voice response of the latest version of J&amp;M&rsquo;s high-output AeroMike V Superior audio fidelity has been achieved with the large diameter DynaPort, non-ported and ultra-slim helmet speakers. (Proper accoustical installation is required, exact type will vary depending upon application) Versatility of J&amp;M&rsquo;s durable Z-series 2-piece cord system allows these headsets to be connected to any factory installed motorcycle audio system ever built, now and in the foreseeable future, just by interchanging the lower-section hook up cord. J&amp;M part # HS-ICD629-N143-HO