JBL MBB218.3 comes with a waterproof faceplate as well as a separate box, functioning as the "brain" of the unit, that can be placed anywhere! The JBL MBB218 "black box" stereo is a first in the marine industry! It focuses specifically on eliminating the potential problem of water intrusion in a marine stereo.
This box allows boaters to put it in a water-protected area. In this era of portable media, many boaters are more interested in bringing along their iPod than in using a traditional CD player, so we designed the MBB218 with no CD mechanism. Instead, it's equipped with aux-in to plug in either an MP3 player or a variety of other types of portable media.