They are not bad, they just don't meet my needs.
I would like the magnets to be stronger and to be able to connect and disconnect from there, without having to close the headphones.
Quality-wise, they are nothing special either.
I would not buy them again

It is good in everything, battery sound intensity ... but not for conversation. The interlocutor hears just fine, the problem is with the owner of the product. It is barely audible.

They stopped working just before the warranty expired, so I returned them.

-They connect quickly and easily BOTH the first time AND when switching between devices.
-The earbud has a comfortable shape, it doesn't bother. Wearing them around the neck doesn't get tiring.
-They have less delay compared to the Xiaomi Basic 2. The sound comes more directly from the device to the earbuds.
-The battery lasts a very long time. Unlike Bluetooth earbuds with a case, where the earbuds themselves have a small battery and you depend on the case.

Very good for their price.
The magnet secures quite well and the main thing is that they don't shut down after a period of inactivity like most others. Quite good sound and microphone. They don't fall out of the ears or from the neck, so they are excellent for sports

The positives are the battery life and the very decent sound quality considering the cost. (It beats the characteristics of a €10 handsfree headset)

The negatives are also quite significant.
Firstly, the button to answer calls is located between the +/- buttons.
With touch, you can't even distinguish it. Good luck trying to answer the call.

They are not extremely comfortable in the ears... just tolerable.

Edit: I remove 2 stars.
I haven't had them for even 2 months and the Bluetooth left us hanging.
It has interruptions and interference, and if you move it, it comes back.
Bad purchase.