With over 50 years of heritage in headphone acoustics we remain dedicated to ensuring exacting standards in both sound and ergonomic performance That's why we continually out to refine and innovate our products integrating your preferences and experiences into our signature designs Fidelio X2HR integrates iconic design matched with an impeccably clear and detailed sound range With the Philips Fidelio X2HR immerse yourself in the experience of your own personal concert right at home Acoustic open-back architecture engineered double layered ear-shells pre-tilted speaker plates 50 mm high definition neodymium drivers with LMC diaphragm replaceable Deluxe memory foam ear-pads with breathable velour finishing lightweight self-adjustable hammock with 3D mesh Genuine leather outer headband 3 5mm detachable oxygen-free cable (3M) 3 5 mm to 6 3 mm adapter and cable management clip included