Trekstor e-Book Reader Pyrus mini. Diagonal: 109.2 mm (4.3 "), Technology: E Ink, Display resolution: 800 x 600 pixels. Document formats supported: ePub, FB2, PDB, PDF, RTF, TXT, Image formats supported: BMP, GIF, JPG, PNG. Internal storage capacity: 2 GB, Compatible memory cards: microSD (TransFlash), microSDHC. Interface type: USB 2.0. Battery technology: Lithium Polymer (LiPo), Battery recharge time: 3 h