Overall Ratings:

Sony MDR-NC40 Digital Noise-Canceling Headphones
Sony’s portable line may very well be the most popular aftermarket earphones.
The MDR-NC40 Digital Noise Canceling Headphones offer solid sound, high-quality construction. Cut off 80% off noise. Great for work, traveling, or just when you’re trying to sleep in a loud place, they provide a calming atmosphere anywhere. The pressure-relieving cushion offers premium comfort, and the lightweight, folding design makes storing them a breeze. Includes a premium travel case and AAA batteries.
Technical Details
- Lightweight head-band NC headphones
- Pressure relieving urethane cushion
- Passive operation when power is off
- Battery life: Up to 40 hours
- High quality noise canceling
PROS: It offer solid sound quality, superior noise cancellation ( 80% off noise), and a plethora of useful extras, including a battery pack for extended use.
CONS: cannot be used without the noise cancellation activated; the tight fit may be uncomfortable for some users; and it is expensive.















