Home Slickdeals New Drop Customers: Massdrop X Sennheiser HD 6XX Open-Back Headphones (Blue) $169... Slickdeals New Drop Customers: Massdrop X Sennheiser HD 6XX Open-Back Headphones (Blue) $169 + Free Shipping By ARCOM - 17 May 2024 11 0 SHARE Facebook Twitter Go to the deal page: New Drop Customers: Massdrop X Sennheiser HD 6XX Open-Back Headphones (Blue) $169 + Free Shipping