Ultramarine

2 piece modular design (hideaway module + commander) APP Ready - all primary functions can be controlled by any iOS or Android based mobile device with Polk Ultramarine App AM/FM tuner with RBDS (US/Euro selectable) Weatherband Bluetooth (A2DP, AVRCP) USB (MP3) iPod/iPhone compatible SiriusXM satellite radio ready (requires SXV300V1M tuner) Auxiliary line level audio input (RCA) 4-channel line level audio output (RCA, front & rear) 4-channel speaker level output (front & rear, 50W, 4 maximum) Wired remote control ready Low-battery alert 2-wire power system with non-volatile memory Removable commander cover Meets ASTM B117 (salt/fog exposure) & ASTM D4329 (UV exposure) Meets IPX5 (water ingress protection, hideaway module) & IPX6 (water ingress protection, commander)