The most important thing is the sound.
For normal music files you will be no particular difference to other headphones that are more favorable notice. The full potential is exploited, if you bet on FLAC files. Then the sound is but formidable. A very healthy bass with good height sound, without even beginning to sound raspy.
Music in 320kb / sec is to enjoy, but the difference is not as high beiweitem. All quality including also need not use headphones in this price range.
The headset is extremely well made. The cable is detachable to the bracket, so that could in theory be replaced, should it break down times. This aspect is a clear advantage, new headphones you have to then not equal to buy.
The cable has a robust microphone. It is clearly understood and it does not have it be fixed. Although this is only for Apple devices, Android users look there into the tube, but it is also described as transparent. Accordingly, an assessment shall also positive.
The wearing comfort is given. The fact that the listener's ears do not enclose, but only rest, are such changes not crushed and are therefore well suited for large and small ears.
The design is appealing, combining turned in quality. I like it very much, even if the cable together with the interior region of the listeners would like to have black may be.
Conclusion:
If you like a good processing with a beautiful appearance and emphasis on quality music quality, we recommend these headphones. Since Amazon from time to time offering greatly reduced the headphones, but it is also recommended for 20-30 euros each listener, because you will find in this price range probably vain headphones that can keep up with the UE 4000.
On sale (also I have purchased it for around 21 euros) is the headphones worth the full five stars in any case.
In a control price of around 100 euros you can fall back on headphones most likely, the slightly cheaper (60-80 euros). Processing it out then skin again.
Should you find a couple of years really go once broken and I get another chance to obtain them for the offer price, but I would definitely strike again.