With an extremely forward looking, and unique design, this headphone is destined to be duplicated by others. At the time this product was brought to market it was the first, and only Collapsible StreetStyle Headphone on the market, so all of the others out there are imitators. Koss offers a Limited Lifetime Warranty on all of their products, and is the originator of the Headphone, they celebrated their 50 Year anniversary in 2003.