car GPS .Y401 4.3 inch TFT touch screen,high solution screen,With FM Transmitter, bluetooth , AVin , Operating system: WinCE ... ,E-Book8. Numbers of signal receiver: 20 Channels9. Antenna: with GPS internal porcelain Antenna 10. With FM Transmitter11. Battery: 820 mAH ... , Ndrive,ect14. support 19 languages 15. with outside speaker car GPS navigation device