Based on the design of the legendary sennheiser hd 650, the hd 6xx is a steal at half the price They build on the blueprint of the popular sennheiser hd 650 and revamp it with a slight aesthetic facelift and subtle modifications, like the inclusion of a 1/8 plug to facilitate connecting mobile devices. Product release date 2018 price original
Sennheiser HD 6XX Review - RTINGS.com
They're a collaboration between massdrop and sennheiser and can only be purchased on the drop website
