Does this exist? We bought the Summer Infant Best View monitor, and thought that both the camera and the monitor had options for being battery powered, but unless I'm just really slow, it appears that only the monitor can be battery powered, whereas the camera must be plugged in. That's not going to fly for us because of where we have our crib and where the nearest outlet would be. So does anyone know of a video monitor where both these components are battery operated? I would feel better with video over audio, but if there are any audio only monitors that are battery operated I'll take those too. Thanks!