Summary: drawbacks...none important yet... yet to see how they stay in for high movement activities volume control would be nice, but mute is good pluses comfortable easy to insert in ear seem to stay in well great sound good carrying case, easy to put headphones in it yet compact microphone is clear for phone calls easy mute easy to answer phone calls while listening to music attractive to look at when being worn cord is relatively tangle proof compared to my shure headphones (I...
Summary: I've had 2 pairs of these and am ordering a third. It's a sad fact that I keep losing them or leaving them in hotel rooms but now that I've used these I would not think of ordering anything else in spite of the cost. The sound and fit are both fabulous and I love the cord which is practically tangleproof. Highly recommended.
Summary: I was a little concerned that these would fall between two stools -- that I'd be getting mediocre earbuds for my iPod and a mediocre way to talk on my iPhone, the aural equivalent of those hateful VCR/TV combos from back in the day. I'm very pleased to have been proven wrong. Sound quality is excellent, and these even fended off my inner Amish person, allowing me to talk on my iPhone hands free.
Pros: Excellent sound quality on a variety of devices, ease of use -- filters, replacements, etc.
Cons: What, no pony? I was told it came with a pony.
Summary: These are outstanding in-ear headphones. In fact, they should rightly be called in-ear monitors. They are extremely accurate, and portray clear, balanced sound. They're so good, they easily stack up to pricier Shure and Etymotic IEMs costing twice as much. In fact, I like them better than the costlier Etymotics because they have a flatter bass extension resulting in a more real and satisfying low-end. They even seem to image well for an in-ear.
Summary: Prior to buying these earphones I had read a lot of reviews of various high-quality IEMs including the higher-ranking models by Etymotic, Ultimate Ears, Shure, Westone and some others. I also has experience with some mid-level Shures like the SCL3 and SCL4.
I picked the PFE 122 based on the fact the reviews ranked them very highly, the price and the fact that they have a built-in mic/controller that works with my iPhone 4.
I find the sound quality to be outstanding.