SIMRAD RS-40-B VHF Radio and GPS-500Stay safer on the water with this VHF marine radio featuring a Class B AIS transceiver, and built in GPS. See and be seen by nearby AIS equipped vessels thanks to an integrated Class B AIS transceiver, and add up to two optional wireless handsets to stay connected from anywhere on board. Bundled with GPS 500 for enhanced GPS performance. Product details See and Be Seen with Integrated AIS The RS40 B includes a Class B AIS transceiver, which not only