For mobile satellite television, a satellite television antenna and receiver have to be integrated into the vehicle’s audio-video system. The development of these are in the initial stages in the KVH Industries Inc. and RaySat Inc. There is a marketing partnership with Audiovox, which is a leader with low-priced automotive infotainment systems. RaySat has introduced mobile satellite television systems like the StealthRay and SpeedRay. The former is suitable for factory installation. The latter has two-way Internet connectivity. KVH has introduced the TracVision A5 Antenna system, which is the most prominent mobile satellite antenna system.