The acclaimed Koss Porta Pro has set performance and comfort standards for personal listening worldwide. Designed for those with refined musical taste, the Porta Pro continues to be one of the most popular headphones around the world.

The Ultimate Portable Headphone

Comfort and convenience combined. 

KEY FEATURES:

• The ultra portable on-ear headphones
• Comfort Zone setting on temporal pad for comfortable secure fit
• The ultimate active headphones with a collapsible headband design for protective storage
• Dynamic element for extended frequency response
• Oxygen-free copper voice coils deliver deep bass and signal clarity
• Includes a convenient carrying case for protective storage