THE NEXT-GENERATION HOME PARTY SYSTEM: Meet the GSYS-4000, our flagship home party system. We've developed the GSYS line of speakers to bring your night to life with deep powerful bass and club-like high-definition LED lights. The lighting ranges from a bright pure white to a multicolored rainbow effect. This system features 2 X 12" woofers and 2 X 4" drivers that bring club-level sound quality. It features 1 microphone input with separate volume control, bass and treble EQ adjustments and a range of input options including Bluetooth, FM Radio and an integrated media player to play from USB and SD Cards. If you're looking for a high-quality product with great sound that brings your party to life, then the Gemini GSYS-4000 is the system for you.