Amazon.com has a Sennheiser PXC 150 Active Noise Cancelling Headphones for $49.99 with Free Shipping.
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- Closed supra-aural stereo mini headphones with switchable NoiseGard active noise cancelling n
- Ideal for air travel and noisy environments n
- Ultra-lightweight design and soft ring ear pads n
- Excellent sound quality with deep powereful bass performance n
- Supplied with two adaptors (1/4″ stereo jack and 3.5 mm double mono jack)