Sony MDR-NC7 Noise Canceling Headphones LINK
Amazon sells this set for $33.30.
- Active noise canceling headphones reduce outside ambient noise by 87.4%
- Noise cancelation can be switched on/off and uses a single AAA battery
- Ideal for loud, noisy environments-planes, trains, buses, work, or dorms
- Foldable and swivel design for easy portability; travel pouch included
- Neodymium magnet and 30mm drivers deliver powerful, detailed sound
- Includes airplane adapter for in-flight entertainment (stereo or dual jack)