NEC America MPC900C MobilePro Handheld PC Compact size: 1.8 pounds Microsoft Windows H/PC 2000 operating system 32MB Flash ROM Touch panel function What's in the box: Mobile Pro 900, Backup CR2032 battery, AC Adapter, Rechargeable 2-cell Lithium-Ion battery, PC Connect USB cable, RJ-11 Telephone cable, Stylus pen, User manual