DJI Osmo Action external microphone adaptor

The DJI Osmo Action is ALMOSt the perfect vlogging camera. The one thing that has been missing is support for external microphones like the Rode Video Micro

A few weeks ago the DJI website began listing a USB C to 3.5mm external microphone adaptor by a company called Cynova. I picked one up to test out, and below is my experience.