Sirius XM Radio specializes in providing satellite radio services. Net sales break down by activity as follows:
- sale of subscriptions (86.1%). At the end of 2013, the group had 25,559,310 subscribers;
- sales of advertising spaces (2.4%);
- sales of radio equipment (2.1%);
- other (9%).
At the end of 2013, Sirius XM Radio offers over 165 stations, consisting primarily of news, sports, and entertainment stations (93) and free music stations (72).