Ultimate Ears has done the seemingly impossible by managing to create, not one, but an entire lineup of recognizable, portable Bluetooth speakers among a crowded field of competitors. Right now, you can grab the Megaboom 3, the company's most advanced waterproof speaker, for an all-time low of $119.99 at Amazon and Best Buy — with the latter throwing in a free charging dock that usually retails for $39.99 on its own. And, if you happen to pick one up now, you'll save about $80 off the list price.

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