I bought them a few months ago. I can say that there are better ones... I am definitely not satisfied at all. And this morning, for no reason, they don't turn on. They have a battery, but I don't understand why they don't turn on when I press the button

I have had these headphones for almost 1 year now. They were priced at €29.90 at that time. At €19.90, which is their current price, they are closer to their value.
- With the first pair of headphones I bought, something inside one of the earbuds had come loose (probably the magnet), causing it to move when I shook my head. I returned them the next day.
- The connection is made without any problems within a few seconds (on Galaxy S6).
- The battery has a relatively short duration, about 6 hours of playback time.
- The sound is relatively good - nothing special. They needed a little "warm-up" and after the first 1-2 hours of use, they reached their final performance (as stated in the manual).
- The earbuds with the built-in "wing" do not make good contact with the ear, resulting in sound loss and poor stability.
- The earbuds that accept the included extra fins make better contact, but they can easily come off. I ended up losing one of the fins, so now they are basically useless for sports. Pay attention to this.
- During calls, people complained that they could hear everything around me - no noise cancellation on the microphone.

They sit very well in the ears with the large hook.
The magnets are very good and convenient.
The build quality is poor.
The volume and call acceptance buttons are too close together and difficult to use.
I have 2 of these Bluetooth devices, one of them has a microphone that doesn't work and the other one has buttons that open and close the Bluetooth, unfortunately, both of them are not functional after months of use.
Their battery is simply satisfactory

The waiting and talking times mentioned are completely indicative. In reality, it never lasted more than 48 hours without recharging, and the talk-music time does not exceed 3-4 hours of use. Also, the buttons on the controller are not at all user-friendly (they do not work for call acceptance/termination and are not easily pressed to activate/deactivate the headset). It gave up after two months of use. The only positive thing is the sound quality in headphones and microphone, and of course the magnets. But what can you do with them...