Remarkably low distortion and exceptionally flat impedance for clean, clear, naturally beautiful sound from a wide range of amplifiers and source components, including mobile devices 50mm dynamic driver with biocellulose diaphragm, rubber surround, and voice-coil former for low distortion, high excursion, true pistonic motion Sophisticated ergonomic elements for unsurpassed comfort and fatigue-free listening Sustainably engineered, eco-friendly design elements and materials, including Liquid Wood earcups, biocellulose driver diaphragms, and 3D-printed biomimetic sound-diffusing grilles Features luxurious Carbon Grey Metallic high-gloss automotive finish and includes high-performance AudioQuest cable with discrete mic and smartphone controls