DVD Disc PlayingCD Disc PlayingMP3 Disc Playing Radio FunctioniPod Music PlayingVideo Playing from USB and SD CARDMusic Playing from USB and SD CARDMusic lyrics Synchronizing FunctionWiFi Internet Connection3G Modem Internet ConnectionDrop-down Quick Settings MenuUI Language IntroductionFactory Setting Menu IntroductionPreinstall APP Introduction-1Preinstall APP Introduction-2Preinstall APP Introduction-3Setting Menu Introduction-1Setting Menu Introduction-2