KOSS Porta Pro Classic headphones

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. Known for its high-level of comfort, the Porta Pro has adjustable temporal pads to relieve pressure on the ears. Its lightweight, open-air cushions for hear-through sound keep listeners aware of their surroundings while delivering exceptional sound. The oxygen free copper voice coils and dynamic elements allow the Porta Pro to deliver rich bass and a remarkably wide frequency response. Whether you’re listening at home or on the go, the Koss Porta Pro delivers all the excitement of a live performance. PORTA PRO is Registered in U.S. Patent and Trademark Office and is a trademark of Koss Corporation in other countries. The Sound of Koss: - Whether you´re listening at home or on the go, the Koss Porta Pro delivers all the excitement of a live performance. Collapsible Design: - The ultimate portable headphones with a collapsible headband design for protective storage. Comfort Zone: - Adjustable temporal pads relieve pressure on the ears. 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 Specifications: - 15-25,000 Hz - 60 ohms - 101 dB SPL/1mW