Detailed Product Description 5-inch E-ink display panelDimensions: 148 x 102 x 7.7mmResolution: 800 x 600 pixelsGray scale level: 16CPU: Samsung 2416 and frequency up to 400MHz2.5mm earphone port and 2.0 mini USB portSupports microSD/T-Flash card up to 16GBSupports FMBuilt-in 128MB NAND flash Supported file format: TXT, HTML, PDF, FB2, PDB, EPUB, RTF and DVISupports edit, zoom in/out, dictionary ...