The GoPro Hero3, Hero3+ and Hero4 have a pretty weak built in microphone and the Edutige ETM series mics offer a big improvement in performance. But to get the most out of an Edutige ETM series microphone with a GoPro , you need to set them up properly with your GoPro.
This video helps you do that. Once connected, you don’t need to do anything else. GoPros have a pretty good audio gain control (input volume control) that works well with Edutige microphones.
Check out the video and let us know if you have any questions.