Why five stars?

So I can not understand the five stars. The headset is indeed well made, it affects everything wertig, but the inner values ​​at stake are actually quite poor. I really just needed a pair of headphones as a monitor for electric piano. But the sound is hollow and tinny, that I did not recognize my piano. Then I thought that maybe you could use for telephoning the part. But again, the opposite was relatively poorly understood.
Yes, I know - 14 EUR one must expect anything. But with such a product I telephone rather without headphones and turn on the electric piano softly. I am not quite clear how the good reviews came about.
The bow of the headphone is not reached by the way also with me, even in the minimum setting, the head. You have probably have a relatively large head in the form of an egg, so that part is well located.