... Built-in BluetoothPower Battery type Lithium-ion 5000mAh Battery life and worktime: Up to 4hr surfing via 3G date network, ... Review Support JPG,BMP,PNG,GIF photo formats, support rotating and slide show functions.Audio Player Supported formats: MP3,WMA,MP2,OGG ... change of font, font color, background color, bookmark, background music and photo display at the same timeGames China chess, Cards, Mine ...