I was probably disappointed with what I expected.
The battery runs out in hours, I am a power user but other ones I have tried last much longer.

No good grip for workouts, I wore them while running and they kept falling out. It is better than an average earphone, but definitely not suitable for sports.

On the positive side, the connectivity is immediate and easy, switching from one to the other and using both simultaneously is very good and without any issues. The sound isolation is quite good, but the sound could have been noticeably louder. I don't understand why they make them so weak, since you can adjust them as low as you want, why don't they give you a boost option if you want it.

The touch screen is probably a bad choice. You touch them to answer and they answer without you wanting to, and when they are about to fall and you touch them to hold them, it ends the call. The triple tap basically doesn't work and that's bad, also the voice control feature that other earphones have is missing.

Overall disappointed,
Luckily I didn't pay 40 and found them for 19.

I wanted a Bluetooth to wear while running and listening to music, and for this purpose it is great. It has a good grip and doesn't fall out of the ear, and the headphones are a pleasure to listen to music with. The sound is really very good. The drawbacks I find are the battery, but I want to see a little more because I haven't had it for many days. During a call, only one earphone works, maybe for safety reasons because you don't hear many things around you when you wear both. Another issue is that the sound during a call is somewhat low compared to previous Bluetooth devices I had. They say that the dual charger charges one first and then the other, so it doesn't make sense to put them together, but in two separate chargers to charge simultaneously. It's important that if the battery runs out in one, you can use the other to talk, provided that you don't listen to music for some reason and only have one open. The carrying case is convenient for transportation, although it gets dirty easily. In conclusion, if you want it for music, get it without hesitation, the same goes for running. However, if you want it for talking, although it performs well and clearly, it plays a little lower.