Built To Last! The RP7500 is tough - rated IP54 dust tight and water resistant. RELM presents high class at low cost. This portable radio is loaded with features, such as Whisper, Scrambler, Powerful Audio, LCD Display, Battery Gauge, Safety Precautions, and so much more. The RP7500 is built to last for the most rugged and dangerous environments. Police, Fire-fighting, Security, Government, and anyone who needs power and durability, the RP7500 is the radio of choice. Its features are endless and easy to use.