![background image](http://html1.mh-extra.com/html/curtis/gpd357/gpd357_specifications_2699766013.webp)
4. Mode Operation
There are 4 menus in the Main Menu: Navigation, Media, EBook and
System.
Before using these functions, please copy the correlative files into SD/MMC
card.
4.1 Navigation
4.1.1 Function Features
This GPS navigator uses intelligent navigation system which can pinpoint
the position of mobile device by GPS satellite signal receiver and show it
on the electronic map. The system will figure out an optimal path
automatically after the users set the destination and help them reach the
destination safely and quickly. The system makes you fully enjoy the charm
of it in many aspects such as visual map, real-time animation, voice and
letter reminding and enjoy a comfortable and happy trip.
4.1.2 Key Instructions
1. Map information
GPD357/358 navigator uses the newest electronic navigation map. But the
product will be incompletely accordance with the actual information after
produced because of the development of transportation construction.
Please be sure to drive according to actual transportation condition and
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