0021299158227 Headphone

KOSS PORTA PRO EAR is a foam headphone accessory for refreshing the ear contact surfaces of compatible headphones. Its listing identifies it by MPN PORTA PRO EAR and catalogue number 0021299158227, so it is easy to distinguish from a complete headphone set.

The accessory is made of black foam, a simple replacement material for worn or missing foam pieces. The listing specifies six pieces, providing a set for replacement use.