For high fidelity music listening on the go, the Fidelio NC1 is a premium headphone with best-in-class active noise cancellation and acoustics, excellent comfort / fit and high build quality. Materials include lightweight, machined aluminum ear shells for consistent, controlled noise-cancellation performance, glass-reinforced plastic and aluminum used in the miniaturized hinging system to provide foldability, and a robust quarter hinge articulation system for a greater level of comfort. This combination allows for an iconic design profile without interruption of the sound cone’s acoustic volume, achieving the lightest weight possible.