This unit uses a 1/3" progressive scan CMOS sensor to capture 2592 x 1520 resolution video at 30 fps. IR LEDs provide up to 65' of night vision. The camera features a 2.8mm fixed lens, a wide 100.4? horizontal field of view, a built-in microphone, and a 3.5mm audio input. Integrated PoE technology simplifies connectivity by enabling the transfer of power and data through a single cable. A built-in memory card slot supports microSD cards up to 128GB (available separately).Main FeaturesSupports up to 4MP @ 30fpsBuilt-in standard PoE (IEEE 802.3af)H.265/H.264/MJPEG compression supportedTrue Day/Night operation (IR cut filter)Adaptive IR LEDs reduce IR saturation