SSV Works 3 Speaker Kit SSV-RZR-3 Complete kit ready to install, everything you need to complete the system install including: Front Speaker pods with SSV Works 6.5in. marine grade speakers, 10in. marine grade subwoofer with a vehicle specific subwoofer enclosure, Class D 4ch amplifier, amplifier wiring kit and iPod/MP3 input with volume control and 2.1a USB charge