The Ion Audio Tailgater lets you easily enjoy your personal soundtrack anywhere. This powerful, 20 watt sound system features single-unit construction with speakers, amplifier, audio inputs and a dock for iPod or iPhone all in one box. This high-powered, two-way speaker system has a built-in battery with level indicator for up to eight hours of cordless sound. Or you an plug in Tailgater's power cord and rock out as long as you want. The Ion Audio Tailgater's enhanced bass output creates full, rich sound that's perfect for parties, tailgating, or any other place you need great sound!