AKG Q701 Quincy Jones Signature On-Ear Reference Headphones (Green) Hi Performance Neodynium magnets Open Back Design Patented Varimotion Diaphragm Evolutionary flat-wire voice-coil technology for extremely accura te sound and transient response Patented varimotion two layer diaphragm for sparkling highs and accurate bass response High-performance neodymium magnet system for minimum distortion High-performance, 99.99% oxygen-free, single-sided cable. Comfortable, specially shaped 3-d-form ear pads for perfect fit Designed and Engineered in Austria by AKG but made in China.