Drown out the world around you with the Philips Fidelio NC1/27 Noise Cancelling Headphones. This headset uses optimized 40mm neodymium drivers to deliver some serious sound to your ears. The Philips Fidelio Headphones offer high fidelity sound thanks to the noise cancelling design. Both ear cups feature high quality ergonomic memory foam. Offering superior comfort, this material blocks out environmental noise so all you hear is what’s playing on your device. In addition, the Philips Fidelio Headphones feature a standalone acoustic chamber to produce crisp audio. Ideal for traveling as well as your commute, the Philips Fidelio Headphones also have a folding design. They fold in multiple angles to become small and compact for storage. With 30 hours of battery, you can kick back and relax whenever you want.