Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range - Black

Party Up: Use PartyUp on the Ultimate Ears Boom app to pair several BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers to create a surround sound experience with outdoor speakers Ultimate Sound: The BOOM 4 portable waterproof wireless speaker delivers rich, 360-degree sound and deep, accurate bass, all carefully balanced so you can...