RC821U adopts a generation of Panasonic 1/2.8-inch high-quality HD CMOS sensor with 2.07 million effective pixels, which can output high-quality images with a maximum resolution of 1920×1080. It delivers brilliant colors and detailed video in 1080P at 60fps, even in low-light environments that are too dark or too bright. It supports 12x optical zoom combined with PTZ function, which can present a 72.5 6.9 field of view to capture crystal-clear images. Widely used in live events, webcasting, video conferencing, online and distance teaching and other application scenarios.. Features Designed for large and medium-sized conference scenarios; Featuring a generation 1/2.5 inch 4K COMS sensor from Sony; Enables a resolution of 3840×2160 for ultra-high definition image quality; Providing a more delicate and realistic video conferencing experience; Specifications Color: Black; Resolution: 1920×1080; Viewing Angle: 72.5 Deg Lens; IP Streaming: H.264, MJPEG; PoE Support: PoE 802.3af; .