WC Freeze HD - Cooling Gel Earpads for Sennheiser HD650, HD660S, HD660S2, HD600, HD6XX, HD58X, HD580, HD565, HD545, and HD535 by Wicked Cushions | Extra Comfortable and Cool | Black

WC Freeze HD6XX - Cooling Gel Earpads for Sennheiser HD6XX, HD58X, HD600, HD650, HD660S, HD660S2, HD580, HD565 & More, Made by Wicked Cushions | Extra Comfortable and Cool | Black

NewFantasia Replacement Audio Upgrade Cable Compatible with Sennheiser HD650, HD600, HD580, HD58X, HD660S, HD660S2, Massdrop HD6XX Headphones 1.2meters/4feet

Geekria Mesh Fabric Headband Pad Compatible with Sennheiser HD600, HD580, HD650, HD660 S, Headphones Replacement Band, Headset Head Top Cushion Cover Repair Part (Black)