I just purchased one of these cameras from Adrenaline Systems on Ebay, there are several other names they go by (adrenaline cameras, helmetcamera.tv, extremeguys, etc.) but I suspect they all sell the same junk. These are *NOT* Sony ExView 580 TV lines bullet cams as advertised, I know I own many Sony ExView cameras and the picture quality is magnitude better than the camera Adrenaline Systems is pushing. Other seller indicates that there is no such BS -- SONY 580, 600, 620 TV lines. read full review »