One is hardwired to the fusebox and is mounted almost in front of the rear view mirror. The second one is on a swivel suction cup mount (so I can spin it around in case I need to) and that one is plugged into a USB power plug. It's also easily removeable in case I need it for a rental car when I travel. Both are Viofo A119 V3 cams.How do you use 2 cams in the front?