Party-Proof Speaker with Body Shaking Bass, 24-Hour Playtime, and PowerIQ. Press play to unleash an enormous 105 dB of sound into your party. Feel the bass surge through your body as it 's intensified in real-time by our exclusive BassUp technology. Rave demands your attention—a flashing strobe light and custom LEDs that pulse and flow in time to the beat instantly heighten the atmosphere both indoors or out. Soundtrack multiple parties, tailgates, and other events—all from a single charge. Power up multiple devices via the dual USB ports. Rave features one standard USB port and one with Anker's proprietary PowerIQ technology to intelligently identify your device and deliver the fastest charging speeds. Up the stakes with electrifying party games, customize the lights, or switch between sound modes.