Avoid Traffic Tie-ups The TMC Receiver is an FM TMC (Traffic Message Channel) traffic receiver and antenna. It receives digital information (where available) on traffic and road construction tie-ups and sends it to your compatible Garmin device to offer an alternate route. TMC data is available in a fast-growing number of cities throughout North America and Europe, and gives prompt, accurate notification of accidents, road construction, police or emergency action, etc. — so you can visually monitor traffic flow and, if necessary, avoid traffic tie-ups. Plug and Drive The TMC Receiver features a fully portable, plug-and-play design that requires no professional installation. Just use the suction cups to attach the antenna to your vehicle's windshield. Then plug the TMC Receiver into your compatible Garmin device, and you're ready to receive data. Receive Real-time Traffic Data In most areas, depending on the service provider, TMC traffic broadcasts are continuous — there's no waiting for scheduled traffic news, updates or random alerts. With the TMC Receiver, you see traffic developments in real-time, as they happen, so you can make the right decision sooner. Because traffic broadcasts are received via a "silent" FM data channel, you can still listen to music or news programming on your car radio without interference from incoming FM traffic data transmissions. Because you have better things to do with your time!