Boss MCK1306W.6 Marine Receiver Speaker Combo: * Plays AM/FM/MP3 with front panel USB, SD card and 3.5mm auxiliary inputs (does not play CDs) * SD card input access is located behind front panel * Detachable front panel * 4 x 50W total power * 18 FM and 12 AM presets * ID3-tag * 2 RCA audio outputs * Switchable US and Europe tuner frequencies * Front panel UV coating * PC board with conformal coating * Fully marinized