The acclaimed Porta Pro® Limited Edition is more than two updated colorways. It features an inline microphone, remote and attenuating volume control.
Porta Pro® Limited Edition Rhythm Beige
Porta Pro® Limited Edition Rhythm Beige Headphones - Koss Stereophones
KOSS PORTAPRO PREMIUM RHYTHM BEIGE
New ear pads for my Grados and Porta-75s : r/headphones
Review: I Tried Koss Porta Pro Headphones—Here's How They Sound
Old but gold : r/headphones
Koss - Porta Pro Limited Edition in Rhythm Beige
Koss Porta Pro Limited Edition Rhythm Beige On-Ear Headphones In-Line Mic Japan
Review: I Tried Koss Porta Pro Headphones—Here's How They Sound
Koss Porta Pro Limited Edition Rhythm Beige Headphones with Microphone, Volume Control, and Remote : : Electronics
Sunflowerrmart
KOSS Porta Pro® Limited Edition Rhythm Beige