That would sure simplify my life on a trip my wife and I are about to take. I have a Blitzwolf BW-BR4 that does that well but if I can find a DAP at a reasonable price I'd can leave at least on phone at home.
They advertise "B-Directional" which I believe it to mean acting as a receiver or transmitter. The only one that I can see claiming dual stream is the FiiO M9. Can anyone confirm that it's 100% working with that unit?