The Koss Porta Pro Classic is an iconic pair of on-ear headphones renowned for its exceptional sound quality and timeless design. Equipped with dynamic elements, the Porta Pro Classic delivers a rich, detailed audio experience with deep bass and crisp highs, making it ideal for music enthusiasts who value clarity across all genres. The lightweight construction features adjustable temporal pads to ensure comfort during extended listening sessions, while the collapsible design allows for easy portability. With a frequency response of 15-25,000 Hz and a sensitivity of 101 dB SPL/1mW, these headphones provide impressive performance whether used at home or on the go. Koss has been a pioneer in personal audio since 1958 and is committed to delivering high-quality products that stand the test of time. The company emphasizes sustainability by designing durable products that reduce electronic waste; choosing Koss means supporting responsible manufacturing practices and contributing positively to environmental protection.