Rakuten KOBO 6.8 inch ebook reader with HD E Ink screen. Built-in adjustable front light to relieve eye strain, zero blue light for long reading. Glare-free paper-like display works well under sunlight. Lightweight & portable, perfect for students to study textbooks and novels. Wide format support and long battery life, ideal reading & learning device. Kobo Aura H2O 4G Rakuten Kobo Aura H2O 4GB eReader, 6.8" 265PPI Carta anti-glare E Ink touch screen. IP67 waterproof for bath & beach reading, adjustable front light to protect eyes. Built-in 4GB storage, expandable via micro SD card, fast page turning and long battery life, ideal for students reading novels, textbooks and comics. Kobo Aura H2O Edition 2 8G Upgraded Kobo Aura H2O Edition 2 with 8GB storage. 6.8-inch 265PPI HD E Ink screen equipped with ComfortLight Pro warm & cool front light. IPX8 deep waterproof, slim rubber anti-slip back, store up to 6000 e-books. Ultra long weeks-lasting battery, fully customizable font settings, perfect daily reading & study device.