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 equipped with features like DSC (Digital Selective Calling) for distress signaling. VHF radios are crucial for maintaining contact in areas where other communication methods may be unreliable, especially over water or in remote locations.