Got the B530 Pro. They don't indicate anywhere they are the "PRO" model, but the box is updated and they say they have a Qualcomm w/AptX. They have a micro usb port and i just listened to them for about 5 min.
Bass is great, super clean and prominent, but not Basshead, mids are full but a bit muffled in the low highs/high mids, highs have some nice sparkle but are a little on the bright side for me.
The left bud is a bit louder than the right
. I'll burn them in this weekend and spend some more time with them. Also, the soundstage is nice and wide.
I just A/B'd them vs. FIIL T1X in Bass EQ. Save your money and get the FIIL. The tuning is much better balanced. I'm still going to burn the B530 Pro in, but Frankly it hurts my ears to turn it up. I tested them with the Same tips, which was a challenge because the B530's nozzle seems a bit smaller and a lot of my tips won't fit securely on them. I'm not saying they don't sound good, they do, but they are shouty on the high end and at louder volumes. At medium volume, they sound pretty dang good.