VHF radios, or Very High Frequency radios, are communication devices that operate in the frequency range of 30 MHz to 300 MHz. They are commonly used in marine, aviation, and land-based communications due to their ability to transmit over long distances with clear audio quality. VHF radios are essential for safety, allowing users to communicate with each other and with emergency services. These radios typically come in handheld or fixed-mount models and can be used for both voice and data transmission. Many VHF radios are equipped with features like DSC (Digital Selective Calling) and GPS integration, enhancing their functionality and safety in critical situations.