Looks cool, I don't know for sure based on a quick look, I believe it is just a camers. I think you need to also get something to record into.
The one I use comes with a DVE and a camera. The camera is about 1"x1" by 1/2". It's desined to be worn in your shirt and the front of the camers/lense pokes out through the button hole in your shirt.
I find it VERY easy to mount to different things or on different places on my bike. I've never put it on my helmet but I've had no reason to. One my bike works better for me.
Let me know how it works out.