Utility Series

The Koss Utility Series is an all-new way to experience The Sound of Koss®. Three new headphones. Three new cords. One seamless experience where everything works together. It's that simple.


Porta Pro® Utility, KPH40 Utility and KEB90 Utility are interchangeable with the 3.5mm Utility, USB-C Utility and Lightning Utility connector cables.


Save 25% on the additional Utility Series USB-C or Lightning connector cable by adding them to your cart at checkout.