[Expired]Koss Porta Pro On Ear Headphones with Case

• Amazon.com now offers Koss Porta Pro Portable Headphones, now priced at $28.49 (originally $49.99).
• Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: The legendary Koss PP is perfect if you're a deep bass enthusiast - this 39-year-old classic will definitely satisfy your taste. The design from 30 years ago still looks avant-garde today, and it even made an appearance in Jay Chou's China Mobile commercial over a decade ago. The Koss PP is foldable, making it extremely convenient for travel with its compact folded size. With specs of 15-25kHz, 101db SPL, it's not difficult to drive but still recommended to use directly with a computer. Sound-wise, it offers strong, substantial bass with excellent performance for pop and rock music, and works particularly well with mid-bass test tracks like "Ferry" and "Hotel California".