... ,GPRS, RFID reader is optional 3.5" PDA ,handhelds,handheld device,handheld terminals, with barcode reader,GPRS, RFID reader is optional1.Operation ... : 202mm*78mm * 33mm 15. Weight: 300g 3.5" PDA ,handhelds,handheld device,handheld terminals, with barcode reader,GPRS, RFID reader is optional