iRiver Story HD Digital EBook Reader WiFi (U.S. Version) PDA and Handheld Features: 240,000 Word English Dictionary Processor Type: i.MX508 with ARM Cortex-A8 File Formats Supported: TXT, XLS, DOC, PDF, EPUB, PPT Built-In Memory Storage Capacity: 1.4GB Display Features: High-Definition, 6" E-Ink Display Display Size: 6.0 &#34; Maximum Resolution: 1024 x 768 Wired Connectivity: USB 2.0 Wireless Technology: Wi-Fi Enabled Wireless Standard: IEEE 802.11b/g Input Method: Keyboard Entry Input Type: SD Card, Mini-USB, SDHC Card, SD Card Slot Includes: Quick Start Guide, USB 2.0 Cable Power Source: Battery-Powered Battery Charge Life: Up to 3 Weeks or 14,000 Page Turns. Dimensions: 7.5" L x 5.01" W x 0.37" T Weight: 7.3 Oz., Warranty Description: 1 Year Limited Manufacturer Warranty