I'm certainly not expecting this stuff to be the Cadillac of in-ear monitoring, but if there's a possibility that its a cheap and useable alternative, then there's no harm in giving it a shot...especially in a controlled rehearsal environment where a performance isn't at stake if it doesn't work out.
I get this. But for an inexpensive current-technology IEM solution, going wired still makes way more sense than bluetooth. Better sound and safer, too.
