1)wifi, bluetooth,printer 2)optional gps, gprs,barcode scanner, rfid,camera 3)4000mah battery 4)SDK,Sourcecode free SPECShandheld ... supply,separate seat charge5hours Support functionsRFIDBarcode Scaner(ID)CameraGPS(SKG13)LF:125k (ID) HF:13.56M(ISO14443A) 134.2khz(optional)Symbol ...