Dahua 4MP WizSense Built in Mic IP Camera PoE SMD+ IPC-HFW2441T-ZAS 2.7-13.5mm
> Alarm: 1 in, 1 out (Only - ZAS supports); audio: 1 in, 1 out (Only - ZAS supports); supports max. 256 G Micro SD card; built in MIC. > SMD Plus. > Built-in IR LED, and the max. illumination distance is 60 m.