Top critical review
Not a particularly well made or high quality product but at this price, it does what it is meant to do and it works.
on 8 May 2013
You will need this kind of adapter to use your own headphones with a 3.5mm stereo plug on them, on some airplanes. Whilst many airplanes do now have 3.5mm sockets for conventional headphones or headsets, some don't and it would be infuriating if you could not use your headphones on a long haul flight. Therefore, considering the price, get these and be prepared.
These are not particularly high quality but they fit and they work. Also, don't spend too much on this kind of adapter as these are quite easy to lose.
My advice if you are going to travel long haul - buy them and be prepared.