The Audiovox Satellite Radio Shuttle Receiver SIRPNP3 is a compact silver unit designed for use with Sirius satellite radio. It features 30 channel presets divided into 3 preset banks, with the ability to store up to 20 songs. The receiver also includes an FM transmitter with 35 frequencies, making it convenient for listening to your favorite radio stations while on the go. With a sleek design and special features such as a channel monitor, this unit is perfect for those looking for a portable and versatile satellite radio solution for both car and home use.