Anti-theft devices are tools designed to prevent theft and protect valuable items. Common examples include alarms, locks, and GPS trackers. These devices can be installed in homes, vehicles, or on personal belongings to deter thieves and alert owners of unauthorized access. Many anti-theft devices work by making loud noises or sending alerts to a smartphone when tampered with. Some advanced systems can even track the location of stolen items using satellite technology. By using these devices, individuals and businesses can enhance their security and reduce the risk of theft.