Cons:
- A little short cable length, but the size is standard with the market
I submitted the headphones to extensive testing and they have been very positive. Among other things, music type "Voice" (his very clean and very nice), music type "low" (the boom boom never saturated even at high volume), etc.
In my opinion, it is difficult to find a competitor's superior product in the same price range. I think of some of the Shure brand, but their price is rather around 100 (I speak significant upgrade in music playback).
Hard to find fault with these headphones, they are really very good as qu'intras. However, I concede that if you have an audiophile at hand (ideally open aural above) you will see its limits, but it's nitpicking considering its first use on the go.
Last remark, although their use is recommended for Sony phones I've tested on my Samsung Galaxy S3 and Samsung Galaxy Note 4 all controls on cable work well (volume +/-, play / stop .. .).
I hope this helps, have fun!