I am a fan of the Planet Halo line of Dash cams. Currently I have the PH4 model in my motorhome (4 camera system) and a PH2 in my regular vehicle, Toyota 4Runner (2 camera system). They can be wired to a constant source of 12volt power and therefore act as a security system for the vehicle once it is parked and the motor turned off. The PH4 model also allows it to send its video to a second harddrive (set up with its own wifi) in the vehicle, just in case someone were to break in and take the Dash Cam. The reason I point these options out is that these folks have put a great deal of thought and engineering into their product. Anyone else familiar with this line of products or have other companies with great Dash Cams?