Sirus Low Profile Antenna Specially engineered for marine use, Shakespeare"s Galaxy series satellite radio antennas are small, light weight and power connect any Sirius Satellite radio receiver, and enjoy. No ground plane required, and the Versatile mounting and the flush mounting kit is included. Features 100 streams of digital entertainment for your satellite radio 60 original commercial-free music streams 40 world-class sports, news, and entertainment streams S-Plex technology for superior sound resolution.