Oh, and round the windscreen edges.
The rubber seals perish and water gets in there. It’s a windscreen out job and they are hard to get out without breaking.
Replacements are hard to find, along with pretty much all other body parts
It doesn't do motion detection like some of the more expensive ones do.
It does have auto record if it detects a shock whilst the car is parked up. i.e. Someone hits your car whilst it's parked up.
It's detachable too.
It saves 3 or 5 minute files onto the SD in a loop and you can press a button...