... ,optional 1D scaner, rfid,camera,gprs 3)4000battery SPECShandheld pda with thermal printerOSCPU WINCE5.0,MOBILE6.0, support different global languages ... USB 1.1 Host,1 Client 1 RS232 serial portbuilt-in mic; Speaker and 3.5 mm stereo headphone jack; MP3 ... GSM/GPRS/3G ,WIFI,Bluetooth RS232 communication, and optional buit-in barcode scaner , rfid card reader and 37.9Khz infrared module ...