Party-Starting Sound: Enjoy a huge 80W of sound delivered by a 5.25-inch woofer, 2-inch tweeter, and 5.25-inch passive radiator IPX7 Waterproof. 18-Hour Playtime: Go from your yard, to a tailgate, and on to a night of partying at the beach—all on a single change. And if your phone can't keep up, plug it into the built-in USB port and charge while you play.