The Hd 560S open-back headphone is tuned to reveal the truth in your music without sacrificing the gratifying bass response needed to reproduce complex modern music. Its transducers are angled to recreate the optimal triangular listening position for a wide, articulate soundstage. The low-impedance drivers offer the flexibility to reproduce hi-fi sound on virtually any of your audio devices such as portable digital audio players, laptops, A/V receivers, audio interfaces and more.