... built-in Support maximal capacity 1. 7 inch TFT touch screen, Display solution 800*480. 2. CPU: CPU MTK ... function built-in . 6. Support maximal capacity: NAND Flash 4GB / External TF Flash 16 GB 7. Support FM Transmitter ... Operation System :Microsoft Windows CE.NET 6.0 11. Functions:Navigation, MP3, MP4, JPG picture, Audio and Video player , ... . Mode size :150 * 90 * 12 mm car portable GPS navigation