The VB-4-IR from MOBOTIX uses a 1/3" progressive scan CMOS sensor to capture 2720 x 1536 resolution at 30 fps. IR LEDs provide up to 98' of illumination in low-light conditions. The camera's 2.7-12mm motorized varifocal lens delivers a 99 to 31° horizontal field of view. Two-way audio communication is possible thanks to an audio input and output. An onboard memory card slot supports microSD/SDHC/SDXC cards up to 128GB (available separately). Integrated PoE technology simplifies connectivity by transferring power and data over one cable.