1)gprs/gsm protable printer pda 2)RFID reader, barcode scanner, gprs/3G communication 3)SDK and ... TFT QVGA color; touch screen, backlight3.2'', resolution 320 x 240 dpi ,sunlight viewableOperating Keys24 +2 custom keysenclosed stylus or fingertipsupport Mouse ... test5 - 95% (non-condensing)1.5 m drop onto concreteIP54 thermal printer pda with gprs rfid wifi