2.4"TFT Screen,QVGA,262K Colors 200K pixels camera,focal length adjustable.Can make video. Support:AVI,ASF,WMV,MP4,MTV,3GP,MOV,MPG DAT,VOB Video Format Outside-set speaker Support Max 4GB flash TXT text reading, E-BOOK function, Book mark supporting. JPG,GIF,BMP,PNG photo format supporting. Enlargeable Build-in FM radio, Auto and manual channel searching. Many Build-in games and Multi Languages support. Windows' Files management. Just like using our computer. Support NandFlash,SD card FAT 32 file systerm Support fixed time power on and off Battery:Build-in high quality lithium batteries Firmware update support Operating system:Windows 98,ME,2000,XP