Hi,

Is the Action 2 compatible with every USB-C microphone out there? (the ones also sold for smartphones).

Do you also get the Audio menu showing up if one of these mics are plugged in?

Hi there. Thank you for reaching out. If you haven't purchased one, we recommend using the DJI Mic as it supports stable wireless transmission up to 250m(820ft). For more information, you may visit this link https://www.dji.com/global/mic . We also tested a couple of 3rd party USB-C microphone (USB-C Male Plug) that works on the unit, please check the list below:

2. Soaiy: MK3;
3. Fifine: FJ230;
4. Latzz: A3
5. Lenovo: UM6S;
6. Saramonic: U3A;