Weights and Measurements * Dimensions (Approx. ): 188mm*120mm*9.5mm * Weight (Approx. ): 180g * Color: Silver, White, Black System Requirements * Operating System: Linux 2.6.18 * Processor: ARM9 with 32bit RISC S3C2440, the highest frequency 400MHz(P) * DRAM: 64 MB Minimum * Data Flash: 512M * Extend stroage: 4G * USB Port: USB 2.0 Power * AC Power: Optional AC Charger requires 120 Volts 60Hz * Battery Life (Approx. ): Up to 7, 500 page turns2 * Battery Type: Rechargeable Lithium-Ion 750mAh Media Formats Supported * TXT, FB2, PDF, MP3 Display * Gray Scale: 4-Level Grey Scale * Resolution: 800(H)*600(V) * Screen Size: Approx. 6 inch Measured Diagonally * Technology: E Ink @"Electronic Paper"