... -GPRS + Wifi + RFID -IP54 seal handheld PDA with touch panel,built-in thermalprinter,camera,RFID,gprs,wifi,1D&2D barcode scanner POS terminalFeatures1 ... for chioce*Flash:128 MB ~ 2 GB Nand flashExtended memoryMaximum 4GB T-flash cardTouch panel2.8" TFT RGB LCD (320* ... .4V,1600mAPower9V,3A power adapter handheld PDA with touch panel,built-in thermal printer,camera,RFID,gprs,wifi,1D&2D barcode scanner ...