Controller: Rockchip Screen: 2.4 inch, 220*176 pixels, 262K full-color, TFT Capacity: Built-in flash memory 128M~4GB Memory card slot: Mini SD Card reader: Mini SD card reading/writing Battery: Built-in rechargeable Li-polymer battery Built in a speaker ,Touch button 11 kinds of languages FM Radio 6 kinds of equalizer modes Audio File Format: MP3/WMA/WMV/WAV Video File Format: AVI