4 inch TFT screen, resolution:480*272 pixel,16:9 260K touch panel display Operation system:Windows CE 5.0 CPU:DGT208(ARM926EJ@266MHz) ROM:128MB-2GB nand flash Language:English/Chinese Built-in rechargeable lithium battery(2400mAh) Power inpt:110-240V AC adaptor,Output:5V Dimension:150*71*16.5MM Weight:186g Support SD/MMC slot reading;Support reading SD card from 64MB-4GB support PPC game and flash game,pocket Nester, 3D, Windows CE games etc. support JPG/JPEG/BMP/GIF picture browsing Support USB1.1/2.0 device,such as USB keyboard,USB mouse,USB flash disk Support E-booking read function(txt,doc,xls,pdf,ppt,pps),voice recording SupportWi-Fi wireless network technology support software such as msn,skype,tcpmp,Windows Media player, office(Word,Excel,PowerPoint)Picture viewer,PDF viewer etc