A headphones combine the Hi-Res Audio technology and design features from the original ATH-MSR7 with newly developed active-noise cancelling technology. These headphones are outfitted with exclusive 45 mm True Motion Drivers, a miniature microphone and each earcup with an acoustic vent. The result is consistent Hi-Res Audio reproduction whether in active or passive noise-cancelling modes. The ATH-MSR7NC’s highly flexible swivel design, along with its soft, memory foam earpads and headband, ensure lasting comfort even during the longest listening sessions. The headphones also come with two detachable cables: 1.2 m standard cable and a 1.2 m cable with in-line controls and microphone for use with smartphones. An internal 3.7V lithium polymer battery powers the active noise-cancelling function and can easily be recharged using the included USB charging cable.