Sony MDR-NC40 Noise Canceling Headphone (Black)
September 27th, 2009 by Home Audio 
10 Comments 
Tired of taking your CD or MP3 player onto a plane only to hear the guy next to you better than the music itself? Do away with the problem for good with the MDR-NC40 noise-canceling headphones, which reduce ambient sound by a dramatic 10 dB so you can enjoy your favorite music distraction-free. The headphones work by synthesizing ambient sound with the noise-canceling circuit, thus reducing the commotion before it reaches your ears. In the meantime, the MDR-NC40’s neodymium magnets deliver a wide-ranging frequency response and clear, rich tones whether you’re listening to delicate arias or ear-busting metal. The headphones serve other purposes as well, such as blocking at sound while you’re trying to nap or honing in on hard-to-understand passages of a voice recording. Appropriately for a travel unit, the headphones fold compactly for easy storage in a carry-on or backpack. They also fit comfortably over the ears thanks to the soft ear pads, which listeners can wear for hours with no ill effects. The MDR-NC40 also includes a plug adapter for connecting to a stereo or, alternatively, an airline dual jack for enjoying in-flight music services. What’s in the Box MDR-NC40 headphones, carrying pouch, plug adapter, user’s manual.
Shut out up to 80% of the ambient noise around you with the MDR-NC40 noise canceling headphone. Great for work, traveling or just when you’re trying to sleep in a loud place, they provide a calming atmosphere no matt (more…)
Tags: Black, Canceling, Headphone, MDRNC40, Noise, Sony
Posted under: Headphones
4.0 out of 5 stars
Great for the money
I’ve used it only a couple of times, during long flights. The sound deadening is great on the higher frequencies, less so on the low frequencies, but the low frequencies kind of…
5.0 out of 5 stars
nt 1 review
Great bang for the buck. The product provides good performance that is adequate for most usages. great buy
5.0 out of 5 stars
Surprising reviews, in short, a good headphone…
I am really surprised that this headphone gets average-to-bad reviews. Considering that I have both PXC-250 and PXC-300, I really enjoyed this one, and for now, more than those…
4.0 out of 5 stars
Sony Noise Canceling Headphones
The headphones are comfortable, easy to pack and canceled out the screaming kid behind me on my latest flight.
1.0 out of 5 stars
Does not work at all
I used to have a Sennheiser PXC 250, but it broke, so I thought to have a try at a different brand. After reading all the comments about Sony MDR-NC40, I thought I should give it…
5.0 out of 5 stars
Sony MDRNC40 vs. Phillips SHN9500 vsl Bose QC1
This Sony product just replaced my Philips headset which was working fine, but the size and portability of the Sony got my attention.
5.0 out of 5 stars
Sony MDR-NC40 Noise Cancelling Headphone
Not having a comparison to the expensive noise canceling earphones, I can say that my wife and I are very pleased with its performance.
5.0 out of 5 stars
A wonderful pair of headphones
First, let me say this. These headphones use an active, powered noise canceling system. You must turn it on. If you don’t, well…then yes, they sound a bit weak.
2.0 out of 5 stars
Not as I hoped
I was very hopeful that these headphones would work for me. I am in an area that is pretty noisy and having the comfort of not hearing the noise would have been very comforting…
2.0 out of 5 stars
Uncomfortable
I like Sony products, but this one wasn’t up to expectations. It is very good in terms of noise canceling, but it is not comfortable and it usually cause me headaches…