Stay safe and connected with this VHF marine radio featuring a sleek design with removable fist mic, Class D DSC functionality, and built-in GPS. Keep track of nearby AIS-equipped vessels with an integrated AIS receiver, and add up to two optional wireless handsets to communicate clearly from anywhere on board. A dual-channel AIS receiver monitors the position of nearby AIS-equipped vessels, helping you to avoid collisions in crowded harbours and waterways. AIS information can be viewed on the RS40's built-in screen, or overlaid on your chart or radar screen through a compatible multifunction display. An integrated GPS receiver ensures your boat's location can be sent with DSC distress calls, even if the rest of your on-board electronics are powered down.