In reply to Mikek:
Not the Konica Go-pro look-alike. It's nearly useless. THe bike mounting kit was designed by someone who seems not to be familiar with bikes. The battery lasts about 1:40, which just about covers my commute one way. It rattles in its case, so there is no sound bar 'BRRRRRRRRRRRRRRRRRRRRRR' - that's once it's mounted on a garmin/go-pro mount.
The helmet mount is also useless.
The Fly6 rear view camera/light is really good, but the battery will only last for about a year of commuting use after which iit is fried and not replaceable. Their front light/camera is over-specced and over-priced for a 'just in case' camera.