... 1D scaner, rfid,camera,gprs 3)4000battery SPECShandheld pda with thermal printerOSCPU WINCE5.0,MOBILE6.0, support different ... BatteryCharging methodCharging time Rechargeable 3.7V,4000mAH battery Enclosed power supply,separate seat charge5hours Support functionsRFIDBarcode Scaner(ID) ... GPRS/3G ,WIFI,Bluetooth RS232 communication, and optional buit-in barcode scaner , rfid card reader and 37.9Khz ...