Netherwind
100+ Head-Fier
No lag with my LG V20 at all. Was watching a twitch stream and some youtube videos that way. Did not notice a problem. Pairing was a bit tricky, but not horrible at least. That was mainly because if it's off, but you press the button to pair then the headphones use the female voice of "Pairing" just by pressing the button whether it is on or off. However, it has to be on to pair regardless of that notification. I can't tell if it is on or off either.
Hmm,
I have a Pixel 2 XL and a 5th gen iPad. I need to test more on the pixel, could just be another issue with the awful ios11 update.