Built with the same drivers as Koss' famous PortaPro set, the KSC75 feature the same great sound without the headband. These clipon headphones are cheaper, and have the same lifetime warranty as their older bretherin. Opposed by few in their price semgment, and considered by many on the popular headphone enthusiast site head-fi.org to be the best all-around beaters, the KSC75 is often present in the audiophile's arsenal.