Baby #2 coming in Sept and looking into upgrading to a dual monitor. Currently only have an audio that has worked great.

Do any of the dual baby monitors also have simultaneous audio? As in, you can hear noise coming from both cameras/rooms without toggling back and forth? Or do the monitors know which room is making noise and then broadcasts from that camera/room?

Just having some difficulty understanding dual monitors from what I'm reading online... but I really want to make sure the audio is top-notch so that overnight I know which kiddo is making the noise!

Thanks!