ShopDupesDealsBlogAppScan to download the appExtensionSign UpShopsDropShareVisitDealsSaveFrom drop.comMASSDROP X SENNHEISER HD 6XX HEADPHONESOur all-time best selling open-back audiophile headphones, the Massdrop x Sennheiser HD 6XX is a replacement to the original HD 650 with a refreshed aesthetic & improved utility.Download Carrot for the full experience
