Conclusion after an intensive test phase (Caution, much respect to the K518!):
* Slightly narrower sound - both the range and the stereo range - compared to the K518. The bass is very decent, but the highs are definitely a bit narrow. Nevertheless, acceptable and after a short time and not mushy. When size very amazing.
* The cable is quite thin and looks as if it would even earlier than that of K518 break. Fortunately, it is interchangeable, which makes me hope for a longer life of the headset. Big plus is the single-sided cable.
* The comfort is superb. They are small and light, making just noticeable while running. The K518 expressed at the start quickly and all the time was more than pretty hard when I have also endured. This feel here extremely light.
* The design is really delicious. I chose the white version because it fits my phone, and I liked best. I had quite a few on-ear phones, but these stand out.
* The remote control for iPhone, I can only use limited thanks Androidbeschränkungen. The handsfree function has not yet become apparent to me.
Overall a nice pair of headphones, where you have to weigh what is important. Sonically they are not quite so open and tired like the K518, the cable works fine, for comfort and design, I forgive top marks.
