theyre super light, its like a camera, the size of a iSight, then theres a cord that runs to a little thing that records it, and thats the size of an ipod. cant even tell its there
yeah i have 2 type alpine type x's but i crashed my car and couldnt use em cause my amps shorted out. im gonna put them in my dads tahoe when he gets his new car
to get back on topic, this is what a helmet cam looks like, you put the thing with the screen in your pocket, helmet on your head, and theres a little record button on the cord. its pretty easy and fun