CPU: Samsung 400 MHz Processor Operation System: Microsoft 4.2 Core Version Memory:64MB SDRAM built-in;64MB(or above)NAND FLASH built in Display:7″(16:9) TFT LCD with touch screen Speaker:Built-in 1W speaker Expansion port:SD card slot Battery:750mAh Li-Polymer,continue working for 2hrs or standby 180hrs Audio out:Stereo headphone line-out plug GPS module:SIRF III high sensitivity receiver Video in:Composite CVBS,PAL and NTSC