Got this thinking it was a GPS all in one unit, but is more just a screen and some extra features to add to a smartphone. Simpler to see screen, has FM transmitter in it with about a 75FT range, also has an equalizer for audio and some other features. I got this hoping to use for work in cars that don't have GPS but this is not a standalone GPS like i had hoped while nice idea i just don't see this being worth the extra effort to make this work for what I was going to use for.