4 MB PDA with scheduler, contacts, memos, and calculator. Copy, view, and edit Microsoft Excel documents. 160 x 160 LCD display with backlight. Synchronize data with your PC; serial cradle included. Works for 180 hours on 2 AAA batteries. Affordable yet powerful, the Casio PV-S400 Plus 4 MB Pocket Viewer offers a quality LCD screen and more battery life for a sleek, easy-to-use PDA. This Pocket Viewer has all the popular PDA functions, including scheduler, contacts, memo, expense manager, currency converter, and calculator. With the PV-S400's 4 MB of flash memory (2 MB user and 2 MB add-in plus OS), you can store thousands of contacts, schedule items, expense and memo files. It has a 2.4-by-2.56-inch backlit LCD display with a resolution of 160 x 160. Synchronizing with your desktop PC (using Microsoft Outlook) is easy with the included serial cradle. Running the PV operating system developed by Casio, the PV-S400 also features a rich set of software, including Pocket Sheet for viewing and editing Microsoft Excel spreadsheets, two calculators, 12 games (PocketChess and Poker among them), and a collection of helpful utilities.