1/3" Progressive CMOS, ICR, 0lux with IR, 1920x1080:25fps(P)/30fps(N), F2.0 lens 2.8mm, H.264/MJPEG, dual-stream, DC12V & PoE, PIR, DWDR, 3D DNR, BLC, IR: up to 10m, Built-in mic & speaker, two-way audio, Onboard card slot (up to 128GB), Built-in Wi-Fi, HIK-Connect cloud service Face Detection, Line Crossing, Intrusion Detection, Motion detection, Dynamic analysis, Tampering alarm, Network disconnect , IP address conflict, Storage exception Model:DS-2CD2420F-IW