TDK Life on Record Noise Cancelling Headphones reduce unwanted ambient sound to give you a better & more relaxed listening experience. Essentially, active noise reduction works by using a microphone on the outside of the headphone to pick up external ambient noise. This is then sent to a digital processor which generates an antiphase wave with the opposite polarity of the sound wave coming through the microphone. As a result, the external ambient noise is reduced within the enclosed listening space.
The NC400s deliver effective noise reduction in such environments as aircrafts, trains, cars, buses and other public places where excessive ambient noise is present.
The active noise cancelling feature works with or without music playing through the headphones.
Active Noise Cancelling technology
Soft ear pads for extra comfort
Include bonus carry pouch
Plug Type Gold Plated 3.5mm
1 year limited warranty
1 x AAA battery required (not included)
where does the battery go?
A White on 18.03.2013
Sound is great, BUT there are no manauls enclosed or on line! I've been designing products for over 30 years and I'm at a loss as to how to fit the battery required for the noise cancellation function. And what does OSE mean? There's a button with that on it, but again no manaul to tell you what it does.
Really odd fit.
CoffeeChief on 16.05.2013
The sound is good, the NC surprisingly good, but the fit on these is weird. The earcups don't pivot properly, so the headphones sit oddly and strain is put on the headband. It's like they never tested these on a human head. I'm going to take these back. To previous reviewer - the top of the earcup slides off in the direction of the arrow, then you can put the battery in.