As a replacement for an iPod ear bud, the MX500 is a surprisingly decent performer, offering an acceptable sound and a strong value.

- Looseness of fit may me the MX500's most serious flaw. Even turning your head a few degrees, the buds will fall out.

- These buds show a somewhat darker sound, albeit with ample treble to make music enjoyable. That said, the sound signature comes off as somewhat artificial at times.

These are basically the same as the MX400 (thus my sound comments from that review apply here), except they are painted blue (which rubs off over time), have a virtually useless inline volume control, and cost about 50% more. Unless you really like the color blue, save your $5, and just get the MX400.

My ratings: Bass Extension: 2 Bass Impact: 3 Bass Quality: 3 Mids Quality: 3 Highs Quality: 2 Soundstage: 2 Detail: 2 Portability: 9 Isolation: 1 Comfort: 4 Durability: 4 Improvement with Amplification: 1 Value for the Money: 3

These are pretty good for earphones. They sound natural and neutral with good bass impact. Of course, they can't compete in detail with larger models (Koss KSC75, Philips HS820) at the same price point and their sound is not as full, but they are like most earphones, extremely portable.