... screen ebook reader 4gb built-in memory extended tf card up to16gb suport Ebook,Music,Video,FM,pic good quality 7" touch screen ... Model No.: ORB-T704Screen keypad and touch screen 7” TFT panel, 800x480.16:10Operating systemLinux 2.6. ... speakerOther functionSupport Full Screen Refresh and PartialRefreshYou can enjoy picture and music simultaneouslywith time display, calendar functionCPUChina chipMemory1 ...