I use the GoPro Hero 2. I use an audio input cable from sportys.com and it works like this: I plug my headset cable into the audio input cable...that cable then plugs into the helicopter and into the mic-input on the GoPro. This way, anything that is said into the headset will be picked up by the audio on the GoPro. It's pretty slick and works very well. It's great for studying old videos...