... higher version,Firefox,chromeSuper Client1,4,9,16,25,36, 64,81-channel , no user limited , centralized ... monitor, remote record and playback , Skype message alarm, Skype telephone alarmSystemOperation systemEmbedded Linux ... recordAudio (Customized)Encode formatsADPCMInputone channel MIC input ,normal connector Of 3.5mmOutputone channel linear output, normal ...