I didn't expect miracles from BT headphones for a litre, I bought them primarily for sports, where I don't play on hifi, but I demand that the headphones do NOT fall out of my ears. I don't want Inear earbuds for sport on principle, to hear the surroundings too, the pips just fall out sometimes because I have small ears: ). With a cable, the dropping could be tolerated, but a dropping true wireless hub is a recipe for destruction. And these Amazfits fit in my ear just fine. The pressure is just right, it takes a while to get used to, but they don't put too much pressure on the bolt, they don't tend to fall out on some unevenness, so the primary purpose is fulfilled. Since they're open, I can hear the surroundings pretty well. I was pleasantly surprised by the quality of the reproduction. I'm not a die-hard hippie, but I do hear a little something. The music is very pleasantly detailed, I have coated the highs with the equalizer, the bass is just right, so I am satisfied. It seems to me that these Amazfity offer more detail than my previous Sony Linkbuds, which are 2x more expensive headphones, and more detail than the Sony WI-SP500, which I'm used to for a long time, so I'm quite excited about the music. The phone call is fine, the other side of the call had no objections. The stability of the BT connection is fine, unlike the LinkBuds that disconnected when I turned my head. The Zepp app is a bit basic, but it's enough for basic setup and battery status display. So, summing up, for now, satisfaction. I've had them for a few days, so it's too early to evaluate the battery life, maybe I'll discover some other cons in time.