The TomTom RDS-TMC Traffic Receiver is a Traffic Message Channel (TMC) receiver module designed for use with TomTom GPS devices. It allows you to receive real-time traffic information, helping you to avoid traffic jams and find the quickest routes to your destination. The RDS-TMC Traffic Receiver receives traffic data from FM radio stations, providing accurate and up-to-date information on accidents, road closures, and other traffic incidents. With this module, you can receive visual and audible alerts for traffic events along your route, allowing you to make informed decisions and adjust your journey accordingly. The RDS-TMC Traffic Receiver is compatible with a wide range of TomTom GPS devices, making it a convenient and valuable accessory for your navigation system.