the hot selling 7"GPS navigation with FM radio,128MB RAM, 4GB ... mp3/mp4 function,and Ebook function! The main Specification:7 inch touch screen 800*480 gps navigation , 128M ... 2(RAM) - 128M* Flash Memory(ROM)-4GB* External - Micro SD Card( support 2GB,4GB,8GB,16GB) * Battery Life: up ... Bluetooth(optional),AV(optional),WMA9/MP3/WAV music the hot selling 7"GPS navigation with FM radio,128MB RAM, 4GB ROM ...