As for the sound, I can't say they're the best, but for their price, it's normal.
Very heavy, they get tiring on the head after a while.
The microphone is a joke, specifically the entire 'capsule' of the microphone is covered by a piece of plastic which in my case came off (because it's snap-on?!), resulting in the microphone breaking completely as soon as the capsule was exposed

Very good in terms of sound, good in terms of speech, the only problem for me is that they do not have any control system like other companies and you have to manage them through Windows

While the sound is very good and the battery lasts, within the first month the top part where the pins for the docking hub are cracked and broke in 3 places!!!! (Note that it never fell or anything since I take great care of everything). After communicating with the store where I purchased it and explaining what happened, they told me that I would have to send it myself to Lenovo but not to expect to be compensated since they would say something like "it fell" to avoid replacement.

Positives:
- It seems sturdy and of good quality
- Relatively okay bass to good

Negatives:
- Sound is quite bad for the money, 10 euro headphones sound better
- Very heavy on the head (I have other wireless ones that I wear for hours and don't notice them)
- The headphones squeeze you to a suffocating point, even if you "loosen" the headphones afterwards they don't fit well so you end up in pain
- The microphone is just awful, and all my friends who hear me say the same

My opinion:
If you buy them for 50 euros, it's still wasted money. If they are given to you as a gift, you say thank you and use them for 10 minutes.

Purchased at €51, so far very good sound and very comfortable. The only gamble is how long the plastic on the top will last because it's a known flaw of this particular model. Time will tell.

Edit: It didn't even last a year in the end, the top part broke in 2 places.

So far in the 4 months, the headphones are amazing with a large battery, good sound, and comfortable. Very good purchase overall.

Quite good sound in both music, movies, and games (especially when combined with FxSound). A bit heavy, but you get used to it. Quite comfortable without any particular complaints. The microphone is good enough for wireless headphones and their price range. The only negative thing they have (regardless of the price range) is their volume rocker, which is terrible. If your hand is not sweaty, you can't turn it. For 55 euros, there might not be anything else wireless with these characteristics. One month later update!! Indeed, for this price, there is nothing else that can compete. The only negative thing I found is that when you get close to the right earphone, the signal cuts off, but this might be my own issue since I experience the same thing with all Bluetooth devices, even with my phone, I can't talk with my right hand

Very nice headphones, I also have a Legion laptop, so they connected directly.

Personally, I don't believe you can find better quality headphones at the same price. 5/5

Incredible. Insane quality. The cushions are fabric and can be removed for washing. Their material resembles memory foam. It also comes with a jack cable and a type c usb. Incredible

Incredibly good headphones, very well made.
Let's start:
1. They have very good sound.
2. Nice appearance and material quality.
3. I have a big head and at first they seemed small to me, but they turned out to be very comfortable.
4. The ear cushions can be removed for hand washing (it is also mentioned in the instructions).
5. Battery lasts 2-3.5 hours depending on usage.
And finally, you can connect it with a USB cable and a jack port (the round one that we plug into the phone).
100€ is a lot, but at 65€ that I bought it, I'm okay