... control, support TF/micro SD card, built-in 2G memory storage space, built-in battery , built-in speaker, long service time, light ... to demonstrate documents individually, Support connect DVD, DV, PSP, iphone, Ipod, MP4, digital TV, game consoles, digital camera, mobile phone etc ... in function: can project signals directly via DVD, STB, iPhone, ipod, PSP, digital TV, MP4 and other devices13. USB port: ...