Summary: For the MSRP price of these the quality should be higher. Doesn't take much to improve manufacturing process to ensure better product.
Pros: Was on sale.
Cons: Didn't work right. Left speaker crackles. Found a kinked wire close to the left speaker. Called Pioneer customer support for warranty service and they were closed for the holidays. wiring is super cheap.
Summary: These are TERRIBLE earphones! When the noise-cancelling operation is switched on there is a (loud!) audible hiss! How the heck is that "noise cancelling"?? Also, the quality of the sound is cheap and tinny.
Summary: In brief: I really don't understand all the other 5 star recommendations. These earphones are very uncomfortable and DO NOT cancel ambient sounds. A number of friends have tried them and all report the same poor quality.
Summary: terrible set of headphones, painful to wear for a long amount of time and dont really give a good seal, i have found the block is heavy and gets in the way, these went straight to a desk drawer and are still in there now.
Summary: Note to self - read the specs carefully before buying. The noise cancelling on these phones is designed to filter out the lower frequencies of sound. Not the higher. So that means if I use them in the office, I can still hear all the people talking over my music.