Feature:1. 800x480: The E reader has a 7in HD color screen with a resolution of 800x480, and the graphic display is more delicate and clear2. Large Memory: The E reader devices have 4GB or 8GB or 16GB storage for you to choose, and support maximum 16GB memory card expansion3. Navigation Buttons: The black E reader has a mechanical navigation button, which supports the previous page and the following page4. File Format: The color screen E reader supports for EPUB, PDF, TXT, FB2, PDB and other file formats to enjoy reading5. Protective Cover: The 7in screen E reader is equipped with a protective cover for the reader, which protects the device in all directions and operates freelySpecification:Item Type: E ReaderMaterial: ABSColour: BlackOperating System: uCOSArchitecture: Arm 9Speed: 380 MHzStorage: 4GB or 8GB or 16GB (supports up to 16GB memory card expansion, the list does not include memory card)Screen: 7in TFT LCD 16:9Resolution: 800x480Functions: Clock, Bookmarks, Slideshow (Auto Flip), Music Slideshow, Zoom In or Zoom Out, Rotate Screen, Turn PagesDRM: Support for DRMFile Formats: EPUB, PDF, TXT, FB2, PDBVoice Frequency Format: MP3, WMA, AAC, WAV, OGGImage Format: JPG, BMP, GIF, PNGVideo Formats: MPEG1, MPEG2, MPEG4XVID, H.264, H.263, RM or RMVB, MKV, MOV, VOB, FLVInterface Type: 1 x Micro USB, 1 x 3.5mm, 1 x Memory Card Slot (the list does not include memory card)Battery Type: Built in 2100mAh Battery.Package List:1 x E Reader1 x Protective Case1 x Protective Film1 x Headphones1 x Data Line1 x User ManualNote:Shipped with Built in BatteryThe reader supports the connection for Win 10 and the following versions of computers, does not support for OS X system computers.