Sennheiser Gsa 301

The ear cushions made from GSA 301 memory foam provide the best acoustic sealing in their class. They are based on extensive research into the ergonomics of the human ear to ensure the highest possible quality of sound and comfort for extended play, whether you're playing for just an hour or an eight-hour marathon session. The GSA 301 (1 pair) is compatible with GSP 300, GSP 301, and GSP 350.