Wireless cameras are devices that capture video and images without the need for physical cables. They use Wi-Fi or other wireless technologies to transmit data, making them easy to install and relocate. These cameras are commonly used for home security, monitoring pets, or keeping an eye on children. Many wireless cameras come with features like motion detection, night vision, and two-way audio. They can often be accessed remotely through smartphones or computers, allowing users to view live footage from anywhere. Popular brands include Ring, Arlo, and Nest, each offering various models to suit different needs.