(TrendHunter.com) The Philips Fidelio L3 headphones active noise canceling headphones are a premium audio accessory for avid users seeking out a way to enjoy their favorite music and content in an immersive manner.... (TrendHunter.com) The Philips Fidelio L3 headphones active noise canceling headphones are a premium audio accessory for avid users seeking out a way to enjoy their favorite music and content in an immersive manner....