I bought them just yesterday. 70€ is a lot and I paid that amount thinking that with that money I would get a very high-quality product. So I have to write about my experience because it is not good:
Note: I have used earbuds from an unknown Chinese brand costing 6-7€ and wireless Jbl headphones costing 40€ for many years, and based on those, I make the comparison. (I have both for at least 5 years).
1) With the earbuds, you only interact with touch (they don't have buttons), which makes them difficult to use because all the functions depend on whether you touch the touch sensor once, twice, continuously, and so on. This makes them excessively difficult and complicated to use, especially for me who, after a few hours, will not have gotten used to them.
(Comparison: a) my Chinese earbuds had only an on/off button that also functioned as play/pause, so I could open and close them at will at any time, and I adjusted the volume from my phone, b) my Jbl headphones had an on/off button and buttons for volume up and volume down, which made them very easy to use).
2) If they are connected to the Bluetooth of the phone, they do not turn off. (Comparison: Both pairs of headphones I had had the button to turn them on/off, and you could open and close them at any time without having to access the phone to turn off the Bluetooth first). So, every time you want to turn them off, you have to take the phone in your hands, turn off the Bluetooth, and then turn off the headphones.
3) While one of the touch options it has is play/pause, on YouTube, only the pause function works, and if you press play afterwards, it does not work as play. I have never had the same problem with other headphones, with the play/pause button, besides stopping, it would also start the video on YouTube.
And all these negatives with only 1-2 hours of testing them. If there is the possibility to edit the review, I will continue it as I use them.
I may also encounter a problem at the gym or when washing dishes because since they only work with touch, having wet hands may not recognize my gestures.

Tremendous headphones!
I have had them for 2 weeks and I am completely satisfied.
I bought them to wear under my motorcycle helmet as everything else I tried was not stable.
Very good sound, bass, volume, battery life.
The only maybe negative thing is that they might not be very user-friendly if you put them on and take them off frequently as they have the ear hook.
For €67, they are by far maybe the best and highest quality headphones.
They are worth 100% of their money.
You will be very satisfied

The battery seems to never run out, so the 15 hours of usage appears to be true. Very high-quality construction and impressive IPX8 standard. Comfortable feeling when wearing them for many hours, very secure fit that doesn't come off even with intense exercise. Very clear sound both in conversations and music. The charging case is relatively small compared to the construction of the earphones, which have hooks for a secure fit, and should not be compared to smaller charging cases of much smaller earphones without hooks for a secure fit in the ears. Quick connection to both mobile and computer. These are the first impressions after a few days of use and with several hours of daily use, but after a few months, I will know better if all these positive first impressions will be consistent.