The Radio Shack Realistic Pro-2021 200 Channel Scanner is a reliable and efficient radio scanner designed for both base and mobile use. With 200 channels and an analog communications protocol, this scanner offers a wide range of frequency options for clear and uninterrupted communication. The model pro-2021 is known for its durability and user-friendly interface, making it a popular choice among radio communication enthusiasts and professionals alike. Its memory capacity allows for storing and accessing up to 200 channels with ease.