Well, as the owner of the former Razer Kraken 7.1 Chroma v1, having tried the v2 as well, I have the following to say.
Very high-quality construction, the microphone in the picture that I was afraid of, is not plastic, it is silicone and flexible. It comes with a USB cable, a USB stick, and a cushion for the microphone.
Solid construction, beautiful and very comfortable. I can hear myself, unlike the Razer ones, to know if I'm speaking too loud or too low, but at the same time they isolate the sound amazingly.
I am a woman with a small head and I wear glasses and they don't bother me at all and I didn't need to adjust them. They are a bit big for my head, without that being a bad thing, on the contrary, they are comfortable, so I want to believe that someone with a much larger head and glasses won't have a problem. However, you need to download the software and read the manual, it helped me a lot.
I have the white ones and that silver detail is steel. Their cushions are very comfortable. In general, on my head, they are more relaxed than the Razer ones I had and have 'tried'.
They also have a button on the side for mute, on/off, and a volume wheel.
Due to the fact that the Corsair website has a small issue, I couldn't download the software to play with the settings. A future update is expected. So far, everything is good and no interference!
Edit1:
Actually, there was an issue with the link in the manual. Just go to the Corsair page>downloads and download the corresponding iCUE software. Amazing bass, no distortion, crystal clear sound, and the vibration it makes with the bass is simply dreamy.
Don't be alarmed if you hear a female voice when you download the software, go to settings and somewhere above it says Enable Voice Prompts, unselect it and then you can play with the equalizer, create different layers and profiles, and generally play with the settings. You can have a page for music, one for gaming, or even for any game you want, for whatever you want to do, much more convenient than the Razer software. Enjoy!
edit2:
Actually, the microphone bends, it's silicone, soft, and somewhat velvety, and when you lift it up, it mutes directly. Also, something I noticed with the bass. The left earphone slightly creaks in songs with a lot of bass (e.g. Troyboi-Do you) if you have the volume above 60. With other songs so far, and at maximum volume, nothing creaked. If you want headphones to listen to songs with a lot of bass, I don't think these will suit you. I hope I helped!
edit no3 15/2/2021: Because I saw someone complaining about the 3-4 meters distance above, I have to say that I have been in different rooms with closed doors, and I had absolutely no problem with the signal. So far, they work well, just for some reason the microphone doesn't stay upwards, but personally, it doesn't bother me.
Edit no4 19/09/2023:
Τον τελευταίο χρόνο τα ακουστικά μου έκαναν κάτι περίεργο,όταν φορτιζαν στον υπολογιστή και έπαιζα παράλληλα,πολλές φορές 'εκλειναν' όταν το στόμιο του καλωδίου που μπαίνει στα ακουστικά, πιεζόταν στον ώμο μου.Και εχθές είναι που σταμάτησαν να λειτουργούν τελείως και δεν ανοίγουν.Και μερικές φορές χωρίς να τα πειράξω,η ένταση του ήχου πήγαινε στο φουλ με αρκετό distortion.Τωρα το πώς και το γιατί δεν έχω καμία απολύτως ιδέα.Για 120€ που τα είχα πάρει δεν ξέρω αν άξιζαν τόσο τελικά,λόγω του ότι κράτησαν 3 χρόνια.Και η διάρκεια ζωής της μπαταρίας μειώθηκε αλλά λογικό με καθημερινή χρήση.Ισως και να φταίω εγώ που πιεζόταν το στόμιο του καλωδίου στην θήρα των ακουστικών με τον ώμο μου.Για να μη συμβεί και σε εσάς,να τα φορτίζετε κάθε μέρα το βράδυ με εξωτερικό φορτιστή.Αυτά από μένα για αυτά τα ακουστικα,καλές αγορές !