10 of 11 people found the following review helpful
This review is from: Apple iPod M9394G/A In-Ear Headphones (Electronics)
Great sound etc as mentioned already.
If the phones go dead, here is what to do:
remove the rubber bit. The O shaped diaphragm must be cleaned with a needle Gently feel around until you can feel a hole in the diaphragm, and push through it. There must be a hole in each side for the sound to get through. There holes often get clogged with earwax eyc, and need to be kept open. If you do that the sound should return to normal.