Gps voice navigation General: voice navigation: global satellite orientation, global voice navigation, advanced sirf star3 chip, fastly and exactly go to the destination music play: support wma, mp3, wav audio frequency play, you can paly directly and play with earphone. Video play: support wma, asf, avi format mp4 player, high pixel: 480x272, true color, perfect for high-definition visual screen photo browse: support jpg, gif, bmp, png format 480x272 pixel, perfect high-definition video feelings electronic document: support txt format electronic document reading, you can read any favorite book at any time and any where interface style:supply yellow and blue two interface style, optional switch voice choice: support many foreign language map install: install sd card and country map (optional)