Dahua IPC-HDBW2541R-ZAS-S2 5MP Starlight 5x Zoom IP Kamera WizSense IVS Mic SMD+
> 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. > 5-MP 1/2.7" CMOS image sensor, low luminance, and high definition image.