Also have two. One in the RV front window, and one in the toads window. That one gets turned around when I'm towing the car to watch traffic behind the toad.
Both of them slip onto their respective window mounts whenever I'm driving, they have an impact sensor that'll turn on the cam even if I forget, date and time stamps, micro SD card, overwrite when memory is full, night IR, battery operation, auto turn on, and so many other features I just gave up trying to figure them all out and use the defaults.
Napoer Dash CamExcellent design, and found on Amazon over a year ago for $25 each. But that particular unit is no longer available...I only mention them because that was the regular price, not a sales price, so there are some Dash Cam bargains out there, just takes some searching. The replacement dash cam from them is $36.