Cast off with the Boss AudioMCK648W6 Marine Speaker Combo Kit, which includes the MR648W Receiver, one pair of MR6W 6.5 inch Full Range Marine Speakers, an MRANT10 Marine Dipole Antenna, and a 35AC Aux Cable. Play a CD, tune in to the AM/FM radio, hook your smartphone or MP3 player up through the Auxiliary Input or plug into the SD and USB ports to max your digital options. Detach the front panel to deter theft. Make quick adjustments with the remote control. State-of-the-art weatherproofing materials and UV coatings provide protection from the elements.