Color: BlackEnjoy high quality sound from your Satellite radio anywhere you go. With the docking station you can simply take your radio, plug it into the dock, and you will be ready to listen to your favorite station. The dock can be used with a conventional AC outlet. If you want to take it out doors with you it will run off of 8 D-cell batteries giving you complete mobility with your music. The handy remote that comes with the dock allows you to control you radio and the docking station from a distance. If you ever want to play music from one of your other media devices you can just plug it into the docking station using the aux in jack. When it is late at night or if you just want to listen to your music privately, you can always use the headphone jack and listen with some headphones. You want quality sound for your favorite XM station; you get that with the docking station. A 2.1 speaker system with separate tweeters and a subwoofer supply you with a superb sound experience.