Realistic Pro-31 is a versatile and high-performance programmable scanning receiver that provides users with a wide range of features and capabilities. With its ability to cover frequencies from 30 to 50 MHz (VHF Lo), 144 to 148 MHz (VHF Hi), 380 to 450 MHz (UHF Lo) and 470 to 512 MHz (UHF Hi), the Realistic Pro-31 allows users to monitor a vast array of communication channels, including public safety, aircraft, and marine frequencies.

One of the key features of the Realistic Pro-31 is its programmable scanning capability. Users can program up to 10 channels into the scanner, allowing them to quickly and easily monitor their favorite frequencies. The scanner also features a lockout function, which allows users to skip over unwanted channels during scanning.