Rode just recently released the Wireless GO II, a very compact wireless audio system I wrote about in my last article. One of its cool features is that you can feed two transmitters into one receiver so you don’t need two audio inputs on your camera or smartphone to work with two external mic sources simultaneously. What’s even cooler is that you can record the two mics into separate channels of a video file with split track dual mono audio so you are able to access and mix them individually later on which can be very helpful if you need to make some volume adjustments or eliminate unwanted noise from one mic that would otherwise just be “baked in” with a merged track. There’s also the option to record a -12dB safety track into the second channel when you are using the GO II’s “merged mode” instead of the “split mode” – this can be a lifesaver when the audio of the original track clips because of loud input.