: While the product page may still exist, it is generally listed as "no longer available" or out of stock.
: Includes a unique twist-lock mechanism for easy replacement, though the original cable ends in a bulky 1/4" plug. The "Foam Mod" Explained best buy sennheiser 558
Because the HD 558 is officially discontinued, you will likely only find it through third-party marketplaces or as used stock. : While the product page may still exist,