Personal Locator Beacons (PLBs) are compact devices designed to send distress signals in emergencies. When activated, they transmit a unique signal to satellites, which then relay the location to search and rescue teams. PLBs are often used by outdoor enthusiasts, such as hikers and sailors, who may find themselves in remote areas without reliable communication. These devices operate on battery power and can function in extreme weather conditions. Unlike cell phones, PLBs do not rely on cellular networks, making them more reliable in isolated locations. Users must register their PLBs to ensure that rescue teams can identify them and respond quickly.