Want to listen to SIRIUS in certain rooms of your house, but can't get a good signal? The Echo Repeater System makes it easier to get clear SIRIUS Satellite Radio reception anywhere in your home, without having to run extra wires. The wireless system includes a transmitter and receiver module. The Echo transmitter works with your radio's home antenna simply place the antenna where it can receive the strongest signal and connect it to the transmitter. The transmitter then beams the signal to the Echo receiver module, which you connect to your SIRIUS plug-and-play or home radio. You can also purchase extra Echo receiver modules if you have more than one SIRIUS radio in your home (see "Accessories").