Summary: These little headphones have a 5 - 20,000 Hz frequency response. What does this mean? Very deep base and crisp highs. They sound very good for the price. They also include 3 sets of ear cushions in different sizes so that they fit just right. I have been using these headphones for about a month now and I am not disappointed. If you are looking for some inexpensive headphones, get these.
Summary: I found that I had to constantly adjust these to get a consistent sound, and doing so stopped me getting into the music. Because of this I sold them quickly. They sound similar to Etymotic ER6i, with perhaps better bass. I'm not sure if they distorted treble slightly.
Basically, unless you get them dirt cheap or love the looks, there's real earphones to be bought instead.
Summary: When I received these earbuds I was not expecting much. I read reviews on the FX1X and FX3X, and both were laced with caveats. The few posts I found on the 101s said (more or less) that they were the least riddled with problems from the XX product line. In the end, I purchased them on a whim to have a pair of "fun" iems.
The packaging is a royal pain to open. It's nigh upon bulletproof. The cable feels cheap, but has acceptable levels of microphonics.
Pros: Fairly clean bass, break in time repairs sound hiccups, low price.
Summary: I purchased these headphones because some other Head-Fi-ers recommended them to me. And the community is now 2 for 2 in recommendations for me! These are some pretty serious little earbuds. They pack quite a hefty punch, especially for the price, just 17 bucks! I have owned several full size, bass heavy headphones, and these can stand up with the best of them. Honestly, they sound just as good as my Numark Red Waves, both in sound quality and bass.
Pros: Excellent bass, audio quality is surprisingly very good, best bang for your buck.
Cons: Very thin cable, cable catches movement noises, no EQ means some piercing highs.
Summary: Wow. What a value these are. Amazing clean punchy deep bass, great mids and sparkling highs(hot almost) all for $14. Without any eq the bass is just darn powerful. Not muddy, but deep, punchy and plenty of it. Turn on the bass booster and insanity happens. Overall bets basshead budget earphones I have heard. Can't go wrong. Love the slim 3.5mm jack also.
Summary: I purchased these headphones about three weeks ago and have used them maybe half a dozen times. The pros for these are excellent bass...really. They're also fairly light, and don't feel cheap. The cons, are highs are quite tinny. I had to spend quite some time getting my EQ set up to where it was acceptable. I was even looking for a setting to where it wasn't annoying sounding. I'm using it on Apple products, and the Loudness EQ seems to be the one I enjoy the most.