For running, these have been great. I've tried other options and always come back to these for comfort and ease of use. The only reason I'm buys a new pair is that after 8 years, the rubber ear fitting on one ear broke. I still used them, but now that one doesn't stay in well.

Teamarie

Cleveland, OH

For this price point, these are EASILY the worst headphones I have ever purchased. The frequency response listed is EXTREMELY deceptive. If they are truly rated down to 20Hz then it must be at a +/-12dB margin of error. To my ear, I am hearing nothing lower than 100Hz. The amount of distortion produced at even a medium listening level is unbearable. I have owned a few pairs of studio headphones from AT which I love. I figured since my past experience with the brand was good, I would try out their earbuds for casual listening. This model must be made by a different factory with a much lower standard for quality control. I don't understand how AT could allow these headphones to be produced under their brand name.

John

NYC

Good sound quality when just sitting. But as these are marketed as 'active' headphones, I would expect better in that category. To me these are uncomfortable, poor fitting, and come out of my ear almost immediately after I start a run. I tried all the eartips and none of them worked. They slide out of my ear so that I can still hear the highs and treble, but no low-end or bass. Poorly designed in my opinion.

ink

Johannesburg

This set of in-ear headphones have terrible sound quality. Almost no base, just upper end treble. No fidelity, no quality. It looks good and fancy, it seems durable with better quality wire. So lots has gone into design and marketing, but very little into what really matters - the QUALITY of the sound. Also because of its unique cord design and ear loops the wires get tangled up much more than usual. I tried to reach tech support or warranty, but found no telephone # to call. Will be returning the headset from the store that I bought from. I expected more from Audio-Technica as I thought they are known for sound quality.

Ron

Los Angeles, CA

Fit is key for good sound quality for IEMs. Unfortunately, that is where I have my problem with them. The over ear design is good, and does help to an extent, but I have a problem getting (even the smallest size) ear tips to stay in my ears...your experience will likely differ, but small-ish ears take warn. (I'll give AT extra points for the variety of tips included: 4 sizes, 2 styles) I was forced to go through my collection of other tips to get a good fit. Once I did, I was rewarded with a pair of good sounding headphones. I'd categorize them as a "V" shaped sound signature. Good bass, not the tightest, but very satisfying, especially for this price range. the mids were not as recessed as many bass enhanced headphones are, which was a pleasant surprise. The highs did pass into sibilance with lesser quality recordings, but often enough during workouts (which these were obviously made for) It didn't bother me. I only had an issue during critical listening. overall, especially when the price is taken into account, these are a solid headphone, provided you can get a good seal.

jinxy245

Montgomery, NY 12549, USA

I found my ATH-CKP200 SonicSport In-ear Headphones to be an excellent choice for my business, travel and personal needs. They are compact, light, and provide good sound quaility when used with my mobile phone. They are the most comfortable ear phones I have found in this price range AND the round the ear design KEEPS them in place! On top of all that these headphones were accidentally put through an entire washing machine cycle and they STILL WORK. Amazing durability.

Ratyber

Aurora, CO, USA