2 tuning nozzle each a different sound, dsp cable gives more digital lean sound. Balanced 2.5 cable gives more analog full body sound. So 4 sound profiles. Build quality is excellent. Confort for me is excellent. my best friend superior to many iems at this price point. But I have many iems and they might not be as technical but they are more musical. To me a balance issue since then piezo handles the treble and it just so good its seems a bit out of place.

I like that they stay in my ears even when I bend over.
I like the case because it's small. It has really good sound quality. And the noise cancelation is great. Battery life is ok.

If you're not a heavy bass lover, I'm telling you, this buds makes you happy super duper. I can't explain how good the sound quality is. I can hear every detail which I never noticed in Bose Quiet Comfort Ultra and also Apple AirPods Pro 2nd Gen. Yea, it's true, sound is better than Bose and Apple.