GPS navigator with built-in antenna and MP4 player 4-inch TFT true color touch screen Processor: Samsung 2440 (400MHz) SiRF-3 GPS high-quality module Operating system: Microsoft WinCE, 4.2 Built-in satellite antenna Supports MP4, ASF, WMV and AVI format Supports MP3, WMA and WMV format Supports JPG, BMP pictures browsing Built-in dual stereo speaker, MIC Built-out earphone Supports SD card Changeable Li-ion battery Present car bracket