Amazon - Sony MDR-NC6 Over-Ear Noise-Canceling Headphones for $29.99
Shut off the outside world with the MDR-NC6 noise canceling headphones. Ambient sound can be reduced over 10 dB at 300 Hz, which means you`ll hear more music and less plane, train, or bus noise. Noise canceling headphones are great for work, traveling, or even when you`re trying to sleep in a loud place. The MDR-NC6 headphones feature a slim swivel folding design, making them more compact for storage. Just add something cheap to get it over $25 for free shipping. SONY MDR-NC6 OVER-EAR NOISE-CANCELLING HEADPHONES
- UPDATE: Price was raised from $24.99 to $29.99. Still a great deal though.