This provides no surprises. Its audio is decent enough and it's range is acceptable for rehearsing.
My only grievance is the build-quality. It's very light and very cheap and I presume that heavier usage will break it; the first thing that'll go is the battery hatch, the second thing the clip and the third part the antenna. Who knows about the volume knob?
If you treat it with care, I'm sure it'll be a great friend and I do recommend it for dipping your toes into the world of wireless IEMs.