I bought them because I thought their battery would last longer.
But no. Not only a better battery, but also difficult connectivity.
Maybe they are only for i-phone.
I couldn't make them work. I bought another pair.

One of the worst purchases I have made. It’s better to spend a little more money and choose something else. Their battery is terrible, as with 2-3 hours of charging it can reach 100%, but it drops sharply after not even an hour of use. Also, as soon as it hits 20%, they shut down after not even 2 minutes. The fact that they are touch-sensitive makes them very difficult to use because even if you just touch them a little to adjust how they fit in your ear, they start doing whatever they want. Also, the instructions are not related at all to what happens in reality; they do completely different things when you double-click, for example, than what the instructions say. I struggled quite a bit to understand how the touch features work and I didn’t come to clear conclusions since in every video I watched, everyone said something different. The only good thing about them is that they fit very well in the ear.....