... real-time video view 5.8G camera with IR cut ES-DVR704HV421W Camera paramiter:1/4" color CMOS camera,6mm lensResolution:648X488RGB10-15 meters ... ,event,channelVideo recordHard disk,remote record,USBBackup modeInternet,USB storage Wireless parameter(ES- DVR704FM)Frequency5.8GTransmission modeSimultaneously audio and videoOpen distance500MIndoor ...