Home Headphones Massdrop x Sennheiser Edition HD 6XX Open Back Headphones $169 Headphones Massdrop x Sennheiser Edition HD 6XX Open Back Headphones $169 By ARCOM - 29 December 2021 70 0 SHARE Facebook Twitter Go to the deal page: Massdrop x Sennheiser Edition HD 6XX Open Back Headphones $169