It is the mount that is wired and not the dash cam, that gets it`s power once connected to the mount like the Garmin Camper 760 LMT-D.
3 things immediately show up in reviews.
1, The " up to 0.5 hour / 30 minutes " battery life is very optimistic. 2, The image quality is poor. 3, It doesn`t come with a SD card.
Not a lot you can do about 1 and 2 but 3 is easily sorted with buying the largest SD card ( 32GB class 10 ) it will take.