Sony MDR-NC500D Digital Noise Canceling Headphones

Sony MDR-NC500D Digital Noise Canceling Headphones
Tranquility is yours when you strap on the world's first headphones with digital technology for noise canceling. A unique feature even adjusts settings based on your environment.

Groundbreaking technology, for your listening pleasure. The innovative MDR-NC500D headphones use digital technology to more accurately reduce stress-inducing noise from planes, trains and buses while providing the high-quality audio expected from Sony. For extra-long usage, a built-in Lithium-ion battery is included, as well as two AA batteries. Plus, in an independent blind test, frequent business travelers rated the NC500D headphones #1 twice as often as either the Boser QCT 2 or QCT 3 in overall noise cancellation and audio quality.