A mistake on the price?! ...

... Or why the headset is so cheap?
"3 euros, which may indeed be nothing worthwhile" I thought at first, but denkste, the headset could well 5 times cost as much, in terms of quality which proves it.
It is very well made and has a very thick, stable cable. The brackets do not at fixed pressure, and the earpieces sit well, even if you wear glasses. The sound and microphone quality is convincing, in the price range you're there lived very different.

Conclusion: A top price and surprisingly good quality.