13.8mm large dynamic driver | Magnalium diaphragm DLC gasket driver W-shaped gasket | 1.5T magnetic flux | Frontal acoustic prism "Tesla Valve" bass enhancement acoustic design | 316L stainless steel shell Furukawa monocrystalline silver Furukawa monocrystalline silver-plated copper braided headphone cable | Two colors available | Hi-Res Audio Certified