Hi ladies!!

So.. I have a 2 year old and a 4 month old in separate rooms. Our current baby monitor has two cameras and we can split the screen on the monitor to watch both rooms at once. But it only plays sound from the one room that is selected. Is there a monitor that has two cameras and plays sound from both rooms simultaneously or will we need separate monitors/cameras for each child? I’m concerned with what we have because I won’t hear the child that’s not selected if they wake. Thanks in advance! 😃