Sirius XM Radio specializes in providing satellite radio services. Net sales break down by activity as follows:
- sale of subscriptions (87.1%). At the end of 2012, the group had 23,900,336 subscribers;
- sales of advertising spaces (2.4%);
- sales of radio equipment (2.2%);
- other (8.3%).
At the end of 2012, Sirius XM Radio offers over 157 stations, consisting primarily of free music stations (71), and news, sports, and entertainment stations (86).