Latest color screen The e-reader features the latest E Ink Kaleido™ 3 color screen, with an impressive 50% increase in color e-page resolution and PPI. Big and eye-safe screen The 7.8-inch color screen remains totally eye-safe and glare-free, perfect for any content: regular books, manga, comics, and textbooks. SMARTlight & Dark mode Enjoy eye-friendly reading anytime! Use SMARTlight to choose a warm or cool tone for the screen or invert text and background colors with Dark mode. Speaker and Bluetooth Use a built-in speaker to dive into audiobooks anytime, with no extra devices needed, or pair the e-reader with other devices via Bluetooth 5.0. Display type: E Ink Kaleido™ 3 Display resolution: 1404 × 1872 (greyscale) 702 × 936 (color) Display size: 7.8´´ (19.8 cm) DPI: 300 (greyscale) 150 (color) Colour depth: 16 (greyscale) 4096 (color) Touchscreen: Capacitive (multisensor) Frontlight: SMARTlight + E Ink ComfortGaze™ Processor: Quad Core (4×1,8 GHz) RAM: 1 GB Internal storage: 32 GB Battery: 2900 mAh (Li-Ion Polymer). Up to one month of battery life (may vary depending on usage mode, connectivity and settings). G-sensor: Yes Cover sensor: Yes Wi-Fi: Yes (dual band - 2,4/5GHz) Bluetooth: Yes (5.0) USB socket: USB Type-C OTG support: Yes (external memory only) Audio through USB: Yes (through 3.5 mm adapter) Speakers: Yes (mono) Platform (OS): Linux 4.9.56 E-book formats (without conversion): ACSM, AZW, AZW3, CBR, CBZ, CHM, DJVU, DOC, DOCX, EPUB(DRM), EPUB, FB2, FB2.ZIP, HTM, HTML, MOBI, PDF (DRM), PDF, PRC, RTF, TXT Image formats: JPEG, BMP, PNG, TIFF Audio formats: MP3, MP3.zip, OGG, OGG.zip Audio Book formats: M4A, M4B, OGG, OGG.ZIP, MP3, MP3.ZIP Text-to-Speech: English (25 additional languages available for free download on pocketbook.ch) Dictionaries: 11 pre-installed language combinations: English → English (Webster´s 1913) English → French English → German English → Hungarian English → Italian English → Polish English → Russian English → Slovak English → Spanish English → Swedish English → Ukrainian + 42 language combinations avaliable for download Online services: PocketBook Cloud, ReadRate, Dropbox, Send-to-PocketBook Applications: Book store, Library, Dictionary, Browser, Audio Books, Music player, Gallery, Calculator, RSS News, Notes, Chess, Klondike, Scribble, Sudoku Dimensions: 134 × 189.5 × 7.95 mm Weight: 270 g Available Colours: Stormy Sea Water protection: IPX8 Retail set: E-reader, USB Type-C cable, quick start guide, documents