For most, the sound.
First now advance their own volume of earphones I noticed in my short test of two songs (Drum N Bass & House) to positive, it is here compared to my UE 200 namely deutlch higher, which requires less Lautsärke the phone itself I personally also because the battery consumption a good thing.
The sound itself has more deep sound also here a direct comparison with the UE 200 in which I had to readjust the low frequency range on an app with Equilizerfunktion.
The treble sound clear and the middle also listen to clean.
After I complete kitch bentzung possibly this Rezenssion again but in the first impression, the UE must be 200 clearly beaten.