The Sony® Reader offers a new and convenient digital reading experience .Sony PRS500 Portable Reader System - PRS500U2/ 6"Electronic Paper Like Display/ Weighing less than 9 ounces2 and at only 1/2” thin,800MHz Celeron® class processor or better,128MB Ram,20MB Minimum availible Hard Drive space,USB 1.1 or faster port.Turn Approximately 7,500 Pages On A Single Charge/ Supports BBeB Book, Adobe PDF, TXT, RTF, Microsoft Word, MP3, ACC, JPEG, GIF, PNG And BMP Media Formats.You can take many of your favorite titles and documents with you.So compact and convenient, you’ll want to take it everywhere.