4 Very nicely made piece of kit with extrasnotredle | 29/08/2012 | See all notredle's reviews (1)I bought these because they were discounted and as I only intended to use them on airplanes it didn't seem worth it the cost of the more expensive versions. These come with some very useful extras and being able to use them without the leads is a nice touch. They do not seem to be as effectgive at reducing noise as others I have tried but then you would be paying so much more for an extra 5-10% of noise reduction. For me the cost didn't justify that. These are extremly well made and have a lovely quality sound to them. They do have a slight hiss when using them without music (i.e. just to block noise) but I think they are well worth the money.