Surveillance devices are tools used to monitor and collect information about people, places, or activities. Common examples include cameras, microphones, and GPS trackers. These devices can be used for various purposes, such as security, law enforcement, or research. In recent years, the use of surveillance devices has increased due to advancements in technology. Many devices can now transmit data in real-time, allowing for immediate analysis. However, their use raises concerns about privacy and the potential for misuse, prompting discussions about regulations and ethical considerations surrounding surveillance practices.