Up to 2 megapixel (1920 × 1080) resolution Standard video compression with high compression ratio, ROI (region of interest) encoding Progressive scan CMOS, capture motion video without incised margin Support dual stream, and the sub-stream for mobile surveillance High-performance and long service life Infrared LED, Approx. 10 to 30 meters IR range Two-way audio(-S) Audio I/O(-S) Support Wi-Fi(-W) IR cut filter with auto switch PoE (Power over Ethernet) Built-in Micro SD/SDHC/SDXC card slot, up to 128 GB Impact Protection: IEC60068-2-75 test, Eh, 20J; EN50102, up to IK10 Other functions: rotate mode, alarm, mirror, reset button, etc Support smart function: Intrusion detection and line crossing detection Support VCA, which is compatible with NVR for the second time of video searching and analysing