The problem is that its battery does not last for 6 hours as stated, but only for almost 3 hours. Also, because I am a technician and I had to remove the battery, it does not indicate how many mAh it has, which it should. So, the 100mAh mentioned in the specifications is a lie, judging by the battery's duration.

When I move away from the phone and they disconnect, they turn off and I have to turn them on again. The Bluetooth range is a joke. At 5-6 meters, it starts to lose signal. The microphone is terrible, I have to shout for the other participants to hear me

I bought two pairs to use them alternately.
Let's start with the most basic, after six months both of the headphones broke.
Regarding the rest,
Pros:
They have decent sound quality, their battery lasts for about 5 hours of continuous use.
Cons:
During conversations, there were frequent complaints from the other person that they couldn't hear me well.

As I mentioned at the beginning, they broke very quickly for me. If you want to take a risk, maybe they will last longer for you and it might be worth it. If they hadn't broken, they would have been worth their money