“I have only had one opportunity to test the Xvive U$ it at a gig so far.... and it worked perfectly all night! Much smaller RX than the Senny units I had been using, and so much easier to set up, as the Transmitter doesn't need to have a power supply hooked in.
Plenty of volume using a set of KZ IEMs and minimal background noise when I tested it at home in a quiet environments.
The U4 units feel really solid in hand, RX has a good sturdy belt clip, and no antenna sticking up and getting in the way.
Downside.... its only mono, but we have only been using mono IEM sends so far anyway, so I can't compare to a stereo IEM setup.
I can see these things getting lost as they are nearly too small!”