Wirelessly Connecting to 2 displays

So, yes, I acknowledge this post is similar to a few others out there - but I haven't really found the answer I was looking for yet, any advise or insight would be so greatly appreciated.

Bottom line is that I'm looking to mirror the display on my macMini onto two HDTVs wirelessly, including audio. I use the macMini to host presentations and the HDTVs are portable and aren't always in the same place which makes setting up wiring difficult.

Thanks in advance for any direction!