Just an FYI...I tried a Deity V-Mic D4 direct to an Action 3 using the yellow Deity USBc to USBc cable and it works perfectly, including the automatic power on and power off. Next I tried a 3 foot USBc extension cord between the camera and mic and that also worked perfectly. This combination is perfect for in-vehicle recording where one might need some distance between the camera and mic to keep the mic out of the shot.