Individually matched 40 mm neodymium drivers for unparalleled acoustic performance with smooth, extended high-end and accurate bass * Open-back, circumaural design for exceptionally natural sound, wide stereo image, and increased depth of field * Lightweight construction featuring aircraft-grade aluminum alloy yoke and stainless steel grilles for enhanced durability * Steel driver frame with vented center pole piece improves linearity and eliminates internal resonance for consistent performance at all listening levels * Ergonomic dual-frame, padded headband is lightweight and fully adjustable for hours of listening comfort