It works like gangbusters for me.
And sure there might be a frame or two off- but all the walkies will receive at the same time so you could always slip the sync by a frame or two if it doesn’t look quite right in FCPX.
This will easily get you into the ballpark. Since the range you’ll be dealing with is not likely to be more than 10-30 feet, you can get very inexpensive walkie talkies.
Noah
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