Photo 1 of Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range - Blue

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Photo 1 of Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range - BluePhoto 2 of Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range - Blue