The Sony MDR-NC40 are closed, portable on-ear noise-canceling headphones that sit on the ears. These headphones can be used with the noise-canceling feature turned on or off, and have a 59-inch audio cord with a stereo mini-plug. The MDR-NC40 comes with a mini-plug-to-airplane jack adapter and a carrying case, and is covered by a 12-month warranty.
About This Brand
Sony is the leading brand in the headphone market. It covers all types and styles, at all price ranges with wide distribution.
Features & Specs - Sony MDR-NC40
Works with noise reduction off Will operate without the noise-canceling circuitry activated; allows the model to be used as standard headphones if the batteries die.
Works with noise reduction off
Integrated microphone Has an integrated microphone for use with some cell phones or audio players with a recorder function.
Call connect/disconnect control This allows you to answer or disconnect from a phone call with some cell phones.
Call connect/disconnect control
Integrated volume control This allows you to adjust the volume without having to dig into your pocket or purse for a player.
Integrated volume control
Integrated player control This allows you to control some player functions (for example: play, pause, track skip) via a control without having to dig into a pocket or purse for a player.
Integrated player control
Detachable cable A detachable cable allows the headphones to be used for noise canceling without the cord being connected to a music or video player, or dangling from the headset.
Monitor function (mute) Has a control that turns off the audio, and in the case of noise canceling models turns off the noise canceling function, so that ambient sounds can be heard. Useful for hearing ambience like travel announcements without turning off the audio player or removing the headphones.
Monitor function (mute)
Noise canceling unit in earpiece The electronic circuitry for the noise cancelation function is integrated into headphones earpiece rather than incorporated as a separate module that is integrated into the audio cord.
Noise canceling unit in earpiece
Weight (oz.) Reflects the weight, in ounces, of the headphones including the audio cable and batteries, if any.
Cable length (in.) Cable length indicates the approximate length of the cable from the headset or earpiece to the plug, measured in inches.
Cable length (in.)
Low battery indicator An indicator to show that the headphone battery power is low and will need to be replaced or recharged.
Low battery indicator
Battery type The number and type of batteries used.
I use them while watching television or listening to music after hours as not to disturb my wife. I didn't really need the noise cancelling feature, I wanted to see how well they worked. In a variety of background noises, I was unable to discern they had any noise cancelling ability. I recently replaced the long dead battery and considered taking them on a vacation that including air travel. I opted for the buds instead leaving them behind. My son was house sitting decided on experimenting with them, and independently decided they didn't work.
How long have you owned it:
More than six months
No, I would not recommend this to a friend.
from Costa Mesa, Ca
Best Value For Noise Cancelling
Use between LA & Hawaii. Almost as good as my wife's Bose but $150.00 less to purchase
How long have you owned it:
More than six months
Yes, I would recommend this to a friend.
By Jumping Jack
from Framingham, MA
(1 of 1 customers found this review helpful)
Great Headphones for the Money
With My Computer
Got them for Christmas to use with my new itouch...so much better than the ear buds.... Sound canceling is not bad at all and the sound is quite good. While they are not audiophile quality, they are light, easy to use, great to travel with and an all around pleasure...they've made my itouch listening experience so much better. A great value for the dough.
Way over priced for several reasons: (1)wiring is too short; (2) too tight resulting in ear discomfort; (3) hard to really hear any stereo sounds. Adjusted everything and it did no good.
There are only 2 pluses for this headphone; the lightweight and size of the product which allows for laying down comfortably without too much bulk pressing on the ears. However, there are several reasons I would never buy it again and would have returned it but because of all the issues and fees that have to be paid just to return it, I chose not to. You can bearly hear the stereo sounds at all; the wiring is much too short for a regular CD player unless of course, you are sitting on top of it. The earphone sections are too tight and causes sore ears after about an hour of use. This is not a worthwhile product because it does not deliver quality or performance and is uncomfortable after about an hour and that's stretching it. I tried 3 times to use the product but gave up. I attempted to adjust it but that did not work either. Personally, I think it is a ripoff.