Please add the option to connect an external bluetooth mic! The best way is connect to the camera not only mic, but blue-tooth headset, to have the ability to hear the sound from playback video and hear a camera signals about start and stop record. If you will realize this idea, you will become number one in the action camera market. I'm sure. But for a short time, because the video stab have to be much more stable ) -- Best regards, Grio.