iNVITATION music-sharing technology with one-click “Party Button” pairing lets you choose who is gonna “DJ” and who is gonna “Listen”. Unlimited pairing within range (250ft radius). The DJ will have full control over the music and LED lights.Download the party details here! Class D, 450-watt max power amplifier, marine-grade speakersLED light system and USB charging with thumb drive music playbackG3 Mobile App for iOS and Android Fast, free shipping on orders over $50BILT® 3D Interactive Instructions Assemble/Install with ConfidenceWarranties