Sirius ST2 Starmate Replay Satellite Radio with Car Kit Plug-and-play satellite radio transmits wireless over your vehicle stereo Features a five-line LCD display, 30 channel presets, and 30-song memory for favorite song or artist alerts Game alert notifies you when your favorite NBA, NFL, NHL, or college teams are playing Includes a vehicle docking station with a suction-cup mount, DC power adapter, and antenna that mounts on your car Internal memory stores the last 44 minutes of programming for easy play-back