Features:

• deep yet precise bass levels you can actually feel, winner of CNET Editor's Choice Award
• noise isolating technology reduces ambient noise and enables bass without batteries
• warm mids and crisp highs that blend seamlessly with the vibrant bass
• ultra-soft fittings in three sizes (S,M,L) optimal for sport and relaxation

Editor Reviews:

Product Description:
3.5mm Plug Size / Compatible with Personal CD Player, iPod, Computer, MP3 / Features In-Ear Acoustic Technology / Admits Outside Sound for Safety

Rating : - Very poor sound quality
I got these to replace my iPod earbuds (which my daughter had commandeered and ruined by wrapping around her iPod too tightly, yanking the cord out of the plug end), based on the very competitive price and generally good reviews. Immediately upon receiving them, I realized I had made a mistake.

As motorheads like to say, there's no substitute for cubic inches. When it comes to audio, there's no substitute for surface area. This type of in-ear phone uses a diaphragm that's only a couple of millimeters across, whereas earbuds like Apple's are about a centimeter across, and that makes a huge difference. These sound very tinny and irritating in the mid- to high frequencies; an A/B test with Apple earbuds and Phillips sport earbuds ($10 on the same order) was like night and day. These simply can't touch the even frequency response, bass presence and smoother treble of earbuds, even older-generation ones from Apple.

While I would never expect audiophile quality from something this small (and cheap!), I had hoped for much more.