Extreme Outdoor Sound: With the Motion Boom outdoor speaker, you can create a statement. Press play to enjoy massive stereo sound that is distortion-free even at loud volumes. 100% Pure Titanium: Motion Boom's drivers replicate high frequencies up to 40 kHz with diaphragms made entirely of titanium, producing sound with a notably higher level of clarity. The Motion Boom outdoor speaker is IPX7 waterproof and floats, so don't worry if it gets submerged. It floats on water and is completely waterproof. 24-Hour Playtime: The Motion Boom outdoor speaker can play music for up to 24 hours on a single charge, which is perfect for boat excursions, beach days, camping weekends, and more.