A Personal Locator Beacon (PLB) is a small, portable device designed to send distress signals in emergencies. When activated, it transmits a unique signal to satellites, which then relay the information to search and rescue teams. PLBs are commonly used by outdoor enthusiasts, such as hikers and sailors, who may find themselves in remote areas. PLBs operate on specific frequencies and are equipped with a GPS feature to provide accurate location data. They are battery-powered and can function in harsh weather conditions. Unlike other communication devices, PLBs do not require a subscription, making them a reliable safety tool for adventurers in the wilderness.