Please find the installation tutorial videos below:Rearview Dash Cam Wide https://www.youtube.com/watch?v=is7UCJpo6vEBackup Camera https://www.youtube.com/watch?v=xlr1QqenrZg&t=49s

The Rearview Dash Cam Wide is for recording front images, while the backup camera is for recording rear images. You'll be able to record both front and rear if you purchase the bundle.

We don't have an option to turn off all sound on the Dash Cam Wide so far.

70mai Dash Cam Wide is compatible with the 70mai HD Backup Camera (RC04) or 70mai Night Vision Backup Camera (RC05) rear cam.

The Wide doesn't support parking mode currently. The battery consumes too much power if both the dash cam and backup camera are activated during parking.

No, there's currently no option to adjust screen brightness.

Press the first button on the device, under the sound-recording icon. When a backup cam is installed and working, this button will allow you to switch front/rear view.