As far as extra features go, the one big omission is an inline remote/microphone for making cell phone calls. Audio-Technica's $99.95 ATH-CP700BK earphones offer this feature, but that model's design is quite different.
Also, no carrying case is included.
The ATH-CKP500 earphones have more of an audiophile sound profile, with clean, well-balanced sound but not a huge amount of bass. As I said, you lose a little bass with the ridged eartips, and you'll also lose some bass if you don't achieve a tight seal with the standard ones.
I liked the ATH-CKP500 earphones' sound and so did CNET contributor Steve Guttenberg, but we both prefer more natural, accurate-sounding headphones.
The ATH-CKP500s aren't incredibly open-sounding, but they're pleasant to listen to (I didn't get listening fatigue after an hour) and work well with a variety of music. However, if you're into bigger bass and more aggressive headphones, you should probably look at the
And fans of Audio-Technica's full-size ATH-M50s take note: you're not going to get the M50's impressively rich, spacious, and detailed sound from this in-ear model. In other words, keep your expectations in check.
I've tested a fair number of in-ear sports headphones and the ATH-CKP500 ranks up there with my favorites, offering a comfortable, secure fit and very good sound. It's also nice that they're IPX5 waterproof headphones and can be rinsed off after use.
The ATH-CKP500 in-ear headphones list for $74.95, but you can pick them up for less online. At one time, the Monster Immersions could be had for $60 to $75, but the price has gone up (except for the yellow Livestrong model). While this model doesn't have as much bass or an inline remote/microphone, it's a decent value at its price. I have no problem recommending the ATH-CKP500 earphones for both sports use and everyday use.