Well, why Sony WF-1000xm4? Believe it or not, it’s insanely hard to find anything decent, that’s why. All of the TWS headphones models I’ve tried (about 30 of them) didn’t fascinate me in any way, and it just so happened that the WF-1000xm3 I once owned were cool. I really enjoyed them, but then the battery capacity decided it’s time to go.