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“The Porta Pro headphones have an undeniable charm…” - Rolling Stone koss.com/blogs/stories/…

Diaphragm manufacturing - Milwaukee, WI, USA

Cushions for days… 🟠🔴🔵🟣🟡⚫️ #HearingIsBelieving

Retro Headphones aren’t back… They never left. For over 40 years Koss Porta Pro continues to be one of the most popular headphones worldwide with breathtaking high-fidelity audio from 15-25,000 Hz and nostalgic style. #HearingIsBelieving

Friday Vibes.. Summer Vibes... Porta Pro Vibes. 🎶⛅️

Crystal. Clear. Communication. Discover the perfect Koss Communication Headset for your home office, business or healthcare team designed with the features and connectivity you need. Explore: koss.com/headsets

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Step Up Your Game. Experience next level retro gaming and breathtaking high-fidelity audio with the ModRetro Chromatic game console and color matching ModRetro Koss Porta Pro colorways. Available at: modretro.com/products/porta…

1970 - Founder John C. Koss with the legendary Pro4/AA #ThrowbackThursday

Rediscover the Golden Age of Sound with Koss, where Vintage Style Meets True High-Fidelity Audio. #HearingIsBelieving koss.com/blogs/stories/…

For over 60 Years Koss has defined Legendary Sound with some of the world’s most iconic headphones. From the world’s first SP/3 Stereophone in 1958, to Pro4/AA and Porta Pro - Koss has a history that spans six decades of innovation, ingenuity and integrity. #HearingIsBelieving

Rhythm Beige Everything. Stay Tuned… #ThrowbackThursday

Sounds of Summer. 🎶🎶🎶 #hearingisbelieving

I've been having a blast playing old school games with these units! This video is all about sharing my experience with all of you on the ModRetro Chromatic X KOSS Porta Pros! youtu.be/qZeW6TIwuyo

Another one, number 5. Koss

Friday Vibes… 🎶🎶🎶

Summer Vibes… 🎶🎶🎶

The Deals Start Tomorrow… amazon.com/koss #AmazonPrimeDay2025

Koss Prime Day Deals start now. Amazon Prime Day runs July 8th - 11th...But Koss Prime Day Deals start now with our BIGGEST deals ever on our most popular headphones. See Deals: amazon.com/stores/page/A7…