Sony MDR-R10 Home Style Headphones (Discontinued by Manufacturer) Ultimate-quality construction, comfort, and sound Large, 50 mm, ultra-thin, bio-cellulose dome diaphragms for sparkling clear treble and rich bass notes Real-wood housing made from mature keyaki (or zelkova), a Japanese tree Greek lambskin covers the earpads, headband, and suspender; magnesium hangers reduce resonance Cord made from 99.999 percent pure linear-crystal oxygen-free copper; headphones come with a specially treated storage case