HD security dvr recorder -H.264 realtime HD DVR standalone -USB,PTZ,Audio,Network,VGA -2 HDD, 4TB -720p realtime recording 4 channel HD ... , iPhone, GooglePhone, SymbianPowerPower Supply DC 12V/5APower Consumption< 25W (without HDD)OtherWorking Humidity10%-90%Working Temperature 0°C ~ 50°CDimension (mm ...