... system: WinCE 6.0 Functions: Navigation, MP3, MP4, JPG picture,E-Book Built-in 64MB SDROM Support 19 languages 5.0 inch ... memory6. Types of operation methods: touch screen7. Functions: Navigation, MP3, MP4, JPG picture,E-Book8. Numbers of signal receiver: 20 ... FM Transmitter12. Battery: 1300 mAH lithium battery13. With AV IN,Support Rear-view Backup Camera function14.support different map:Route66 ...