CCTV cameras, or closed-circuit television cameras, are devices used for surveillance and monitoring. They capture video footage in real-time and transmit it to a specific set of monitors or recording devices. These cameras are commonly used in public places, such as shopping malls, banks, and traffic intersections, to enhance security and deter criminal activity. CCTV systems can vary in design, including dome cameras, bullet cameras, and PTZ cameras (pan-tilt-zoom). Many modern CCTV cameras offer features like night vision, motion detection, and remote access, allowing users to view live footage from their smartphones or computers.