So, have used these for a couple of hours now, mainly at my gym, which is a loud environment with the gym music & in general people around.
Firstly, these are my first true wireless pair, I've come from Shure 425's, to V-Moda Crossfade, to my current pairing of Westone W30 & Beyerdynamic Custom One Pro - so a decent history IMO.
First thing I've noticed & am impressed with, is sound quality. I'm driving these things with an LGV30, though I did use them for an hour with my iPhone 8+, which seems to output more power/volume? I have to Max out the LG almost, both phone volume & the app, where as on my iPhone, a comfortable volume is just over half way on the phone.
Back to sound quality, I've set up a custom EQ, it's clean, bass is present but doesn't overpower or muddy the sound.
I found I got a decent fit & seal with the largest silicon tips & "foam tips" which came with them, but after about 30 minutes of listening, things got a little uncomfortable. I ordered a pair of Comply T400 isolation tips, makes a great amount of difference to the seal, comfort, stability in the ear & sound. Once these tips wear out, should be in a few months, I'll go the Sony true grips.
Should add, I have been turning the noise cancellation off, with the foam tips, I get a good enough seal to block out all outside noise at the gym.
Is there a way to keep NC off by default??