SeaTrax II is the first affordable MUST HAVE portable, long-lasting battery-operated satellite tracking system that is ready to go out of the box. AtlasTrax has been tracking boats in the USA, Bahamas and worldwide for years. Our SeaTrax II unit is a very effective and affordable entry into the market of boat tracking by satellite. It is totally portable with no external cables or antennas and requires no installation. It can, however, be hard wired to boat power if required.