‧Audiophile quality semi closed-ear, dynamic stereo headphones. ‧Powerful neodymium-ferrous rare earth magnet system. ‧Lightweight copper-clad aluminum voice coils. ‧Adjustable frame allows for a comfortable fit and hours of wear without fatigue. ‧The coiled cord is terminated with a gold-plated mini stereo phone plug, and a ?” phone adaptor ‧Super thin 40mm diaphragm drivers with neodymium magnet structure provide a wide dynamic range and full frequency response.