Well I gave it a spin, but not for long.
Why I'm returning them
If they were as comfortable as the Teaks and sounded not necessarily as good, but as good in their own way I guess, had BT5 and some better codecs, and a replaceable battery I could live with the micro-USB, BT latency, and the ever-looming threat of more Windows-related BT issues. These are good headphones, but, as usual, I find the convenience of wireless is still outweighed by what you have to give up. I'm sure if I gave it a week or two the sound would be fine, but I can't imagine replacing the Teaks with these when I'm actively comparing the two. I'm a one-headphone person, which means I'm permanently dissatisfied.