<a href=" http://www.selfridges.com/en/Audio-Technica/ " style="text-decoration: none"><font color="black"><b>Audio-Technica</b></font></a>&#39;s <b>ATH-MSR7 headphones</b> also feature multi-layered air damping technology for extended mid-to-low frequency response. The housings, designed to “mirror” the full shape of the ear are constructed of an aluminum/magnesium mix and layered to provide a lightweight, rigid structure that reduces unwanted resonance. Three precisely placed vents within these layers work to control air flow and improve dynamics. The over-ear headphones’ highly flexible swivel design, with soft, memory foam earpads and headband ensure lasting comfort even during the longest listening sessions.