This blog is a Products Review from Joying Customer:
After days of research into low cost full screen double din car receivers, I settled on this unit from Joying. It is a popular implementation of the Hui Fei type unit from China [1], with some of the best interface design changes. [1][...]
I've taken the unit and customized it by adding Google Maps, Spotify, Netflix, and Amazon Video. Combining those Apps with the unit's built in bluetooth phone and playback and the need for a external media player has disappeared. I tether the unit to my iPhone, could also easily get a cell adapter and add the unit to your family data plan.
The included GPS is accurate. Both Google Play and Amazon App store work great on the unit.
I've also extended the features of the unit by purchasing a ELM327 OBD2 adapter, which allows me to get real-time information about my engine, including any Check-Engine status codes.
Overall the unit is very fast and responsive, and I would recommend it to all of my friends.
