Raymarine Ais Class B Ais650 Black Box<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Class B ais transmitter and receiver </span></li><li><span class="a-list-item"> Channel raim compliant GPS included </span></li><li><span class="a-list-item"> Dual channel receiver for fast target acquisition and updating </span></li><li><span class="a-list-item"> Receives both class a and class B broadcasts </span></li><li><span class="a-list-item"> SD card slot for data recording </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/414YPeJ%2BggL.jpg" noproxy>