REFM315.2 Package with Stereo, Amplifier, Speaker, Subwoofer, RGB Control, USB Extender & RGB ControlINFPRV315.2 StereoFeatures:3.5” Color ScreenBlack chrome trimRotary EncoderBT4 with id taggingAux inUSB input3 pairs of pre-outs includingseparate subwoofer outWired/wireless remote ready2 ohm stableINF622MLT SpeakersFeatures:6-1/2" 2-way marine speakers (pair)Multi-color RGB LED lightsPolypropylene coneBridge-mounted balanced dome tweeterOne-piece cast polymer basketIPX5 rated for water resistanceREGM4555A AmplifierFeatures:5-channel marine amplifier45 watts RMS x 4 + 320 watts RMS x 1 at 4ohms65 watts RMS x 4 + 500 watts RMS x 1 at 2ohms130 watts RMS x 2 bridged at 4 ohms + 500wattsClass D amp technologyFront and rear channels:Variable high-and low-pass filtersSubwoofer channel:Low-pass filterBass boost on subwooferPhase switch (0, 180 degrees)INF1022MLT SubwooferFeatures:10" 4-ohm marine subwooferPolypropylene cone with rubber surroundMulti-color RGB LED lightsOne-piece cast polymer basketIPX5 rated for water resistancePower handling: 250 watts RMS (750 watts peak power)Sensitivity: 89 dBFrequency response: 25-500 HzImpedance: 4 ohmAlso includes Dipole Antenna and USB Extender.