SURPRISINGLY BIG SOUND -- Welcome to the world of Ultimate Ears. Hear your music like never before with Ultimate Ears WONDERBOOM EXC. It’s a super-portable Bluetooth speaker with surprisingly big sound. Sound that is clear, crisp, and full of big, beautiful bass. 10 HOURS OF HAPPINESS -- Be there all day, all-night. Ultimate Ears WONDERBOOM EXC gives you 10 hours of musical ecstasy. A picnic in the park. Binge-watching shows from bed with furry friends. 10 hours of non-stop entertainment with brilliant, immersive sound. 10 hours of musical happiness. SERIOUSLY WATERPROOF -- Ultimate Ears WONDERBOOM EXC is the greatest thing to happen to baths since bubbles and duckies. It is completely waterproof, floats, and--yes--it will even serenade you. And it is also great for showers, pools, beaches, waterfalls, muddy fields and rainy days. If it gets dirty, just rinse it off. DOUBLE THE SPEAKERS, DOUBLE THE FUN -- If you think one Ultimate Ears WONDERBOOM EXC speaker sounds great, you'll love how they sound together. Press a button on each to pair them up. Then turn things up, get a little crazy and dance like nobody's looking.