... systerm such as city, road, factory, school, port, residential area, scenic area and chain stores, etcProduct ... 240,176*120AUDEO COMPRESSIONPCM/MP3AUDIO PORT3.5mm audio port,1x input,1x outputCELLPONE SURVEILLANCESupportDual streamsupportPROTOCOLTCP/IP,HTTP ... SMTPALARM1x input, 1x outputCOMMUNICATION PORT1x RJ45 10/100M port,1x RS485 portPOWER SUPPLYDC 12V/1.5APOWER5W MAXWORKING TEMPERATUREIndoor, ...