Update: Unfortunately, after 2 weeks defective!

UPDATE:
The headset was impeccably replaced within 1 week from Amazon. Top service, thank you!
The new headset is now working properly for several weeks.
The first was probably a production error. Therefore only 4 stars

Edit: The sound quality is quite ok for the price.
But you should not expect miracles.
(The performance of a 300Euro device is of course not) =)
For Mic I can not say anything. (Did the girlfriend not in use)

Positives:
Processing is quite ok.
The bear is pleasant because it is relatively easy and well padded.
The LEDs change color depending on the mood of the Sims (Sims only 4. In Sims 3 there always lights up green)

Negatives:
The headset was a birthday present for my girlfriend. Unfortunately, it has now given up the ghost after 2 weeks use. Neither her nor my PC will find the headset. There also is no longer lit. I suppose that it is smoked. = (