Dekoni Audio · Aftermarket replacement
Replacement Earpads for the Sennheiser GSP 300 Series Headphones (Midnight or Jerzee series)
Verified as compatible with 1 headphone model.
Verified compatible headphones
Evidence
-
dekoniaudio.com
Dekoni’s product page explicitly lists Sennheiser GSP 300 compatibility and offers Midnight and Jerzee material options. It describes memory foam and enhanced sound isolation.