I used them in running training, the battery does not last for long runs (over 1 hour). Suddenly, after six months, they stopped working, I returned them and they gave me new ones, the exact same, they lasted two days and stopped charging! Stay away, the worst I have ever used!

I use them for running. They are comfortable and the sound quality is very good. The headphones are very stable in the ear, but there are cases where the support rubber comes off, and they are useless without it. There are alternative sizes available, but it won't be as convenient.
It requires caution when removing.

However, it has an issue with the sound - it cuts off - when connected to the Samsung Galaxy Tab S8+. Calls are very difficult because the microphone is not stable and the caller cannot hear. I am very satisfied with the use I make of it, but it is useless for calls, so I simply turn them off when someone calls me.

I was forced to put the rubber cushion from my previous headphones (huawei) because the two separate ones were hurting my ear a lot and they go in too deep. I regretted buying them.