... Master chip: Anyka AK8802 / 233 MHz2. Screen: 4.3 inch TFT 480 x 272 with touch screen3. Built-in file ... 5. Video format: AVI (XVID, H. 263, H. 264, DIVX), ASF, MP4, 3GP, MP3, WAV, WMA, FLV, RMVB, ... stop watch, calculator 11. External memory 8GB TF card; 12. TV out function; 13. Button: 7 keys (left, right, back, ... (similar with Linux)China learning machine: 4.3 inch Touch Screen language dictionary(S80)