Ultimate Ears WONDERBOOM 2 is a super portable speaker that rocks a surprisingly big sound - anywhere. Heading outside? Hit the all-new Outdoor Boost for louder, crisper audio that?s specially tuned for outdoor listening. With 13 hours of battery life, it?ll rage ?till dawn. It?s got a rating of IP67, so it?s super waterproof. And dustproof. And it floats. Plus, you can wirelessly pair two WONDERBOOM 2 speakers for an even bigger stereo or mono sound. It?s your shower buddy, your beach volleyball captain, and the ?big splash? at your next pool party.