A:Answer They don't mix. I had to call and talk to someone with LG and they gave me the run around until finally confirming there is no way the speaker will connect to TV or bluetooth and the microphone at the same time, but they advertise it as a karaoke system! It's not. I bought it for the same reason only to find out that I can only hear myself on the mic or the music, never both at once. What a crappy advertisement. That isn't karaoke at all!