on 05-24-2021 01:40 AM
In order to connect a microphone to the GoPro HERO9, you need the "GoPro Pro 3.5mm Mic Adapter" or the the "GoPro Hero 9 Black Media Mod". Both allow to connect external microphones via a 3.5mm jack. In general, plug-in-power microphones are supported, eg. the Røde VideoMicro.