... optional)Operation system: Android 2.2OS languageinclude but not limited with: Chinese, English, Spanish, Italian, French, Portuguese, Russia, Germany, Arabic & ... WAVPhoto: JPG, JPEG, GIF, BMP, PNGEBook: TXTOffice: EPUB, WORD, EXCEL, POWERPOINT, PDF, TXTInput methodAndroid virtual keyboard,USB mouse I/O connector ... USB Dongle, RJ45 convertor, Foldable USB keyboard, leather case with keyboard(pending)