Wireless audio feed to monitor

[Donadaif]

Hi all. I was looking into the best way (wireless) to get an output from my mixer to the video monitor where the director and producer are watching a take happen. I'd like to have the option for them to hear the audio I'm hearing. For one this would eliminate them having to ask me whether a take sounded good, since they are hearing it themselves. When I call "bad for sound" after a take because a loud truck drove by outside, it would be nice if they heard the truck too, without me having to play back the audio for them. Can anyone point me in a direction about what I need to put together a system like this?

Thanks in advance