In a world where Bluetooth speakers are practically giveaway items, you have to do something special to command a $200 sticker, and Ultimate Ears believes it has the answer. The new UE BOOM 2 takes the cylindrical BOOM of 2013 and gives it a refresh, cranking up the volume by 25-percent while delivering a promised fifteen hours of wireless battery life.

Range is up over the old speaker, too, now at 100 feet versus the original’s roughly 50 feet. It’s still a stubby tube, made of fabric and sturdy rubber, and while there’s a ring on the bottom to attach it to a lanyard or similar, it’s also just the right size to slot into the bottle holder on a bike.
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https://www.slashgear.com/ue-boom-2-speaker-boosts-volume-range-and-ruggedness-15404627/