There was no compatibility information listed for the Sony FX6 and neither the reseller or a Sony Ambassador could say if it was compatible. After purchasing one I can confirm: - Digital Mode does not work (reported as an Incompatible MI Device by the FX6) even though the FX6 has a digital MI Shoe. - Analogue Mode does work but has an unacceptable Hiss as soon as the Receiver is connected and powered on (even with the Mics OFF) - While I did not measure it, I did notice an Audio Delay. The design looked great with a good set of features, but it just does not work well with the FX6. I assume that the digital interface would deliver a clean signal but it is not supported by the FX6. It is also a disappointment that the compatibility list does not cover all cameras such as the FX6 or that the Ambassadors also did not know - so you have to buy and try.