Compatible with Sennheiser HD 820, HD 800S, HD 800 case. Compatible with Sennheiser HD820, HD800S, HD800, HD700, HD660S2, HD660S, HD650, HD620S, HD600, HD599SE, HD579, HD569, HD560S, HD490PRO, HD471G, HD471i, HD461G, HD461i, HD400Pro, GSP670, GSP602, GSP601, GSP600, GSP550, GSP350 case.
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