It is useless as back-up camera. It shows very narrow vertical section, no reversing parking lines. Also it is bulky and my rear view mirror is constantly shifting down.
The video quality is good, but system in general not useful as expected.

This high-quality dash cam offers crystal-clear 4K resolution, ensuring every detail is captured day and night. Simple to install and user-friendly, this dash cam is a must-have for added security and peace of mind on the road and I’m really glad I bought it. Not sure with how long it will last but I’ll update here for sure

Installation was simple with many YouTube videos on how to install. Overall the radio works and fits great. CarPlay automatically connects once setup is done the first time. Also you can switch from CarPlay to android so you can watch YouTube and other video apps on the radio. The screen is surprisingly responsive and the screen is nice and bright. I tested the Bluetooth, usb and CarPlay features and all worked as expected. I did have some trouble programming steering wheel controls but a quick email to the manufacturer and they responded to me quickly with instructions on how to get working which was great. This radio is a great way to update the 7th gen accord at low cost.

The screen is showing lines and old TV static screen stuff

Haven’t been able to figure out how to get our 2nd headrest display to mirror with the first one. Both are on the same network.

The video quality is clear both day and night. Easy to install, with a wide-angle lens that captures everything. The voice control is super convenient and enhances safety. Highly recommend for its excellent performance and value!