Meet the Ultimate Ears EPICBOOM portable speaker! It delivers 360° of bass and clarity. Discover it: –Big Bass: Hear your favorite tunes in 360 degrees of bass and exceptional clarity. This speaker has a woofer and 2-high-frequency transducers. –17-Hour Battery Life: Say goodbye to battery anxiety! This portable speaker provides 17 hours of big bass sound. –Epic Party Beats: What's more, the sound gets even better when you pair the EPICBOOM portable speaker with others like BOOM 3, MEGABOOM 3, etc. –Tough Design: Meanwhile, this Bluetooth speaker holds its own against dirt, dust, and big splashes. Yes, it even floats in water and has an iP67 rating. –Outdoor Boost: Get a little boost outdoors with the Outdoor Boost button. It adds an extra 1 dB of sound. –Sustainable Design: Moreover, the plastic components are at least 59% recycled, and the polyester is 100% recycled. Take your sound up a notch with this waterproof speaker.