... handheld device,handheld terminals, ARM926 based, WINCE with barcode reader,GPRS, RFID reader is optional 3.5" PDA ,handhelds,handheld device, ... handheld terminals, with barcode reader,GPRS, RFID reader is optional1.Operation System: Microsoft Windows CE.Net 5 ... 56M) is optional (the price is not included)7. Backup: SD card or FLASH8. Develop environment: MS EVC 4.0 & VS. ...