Ultimate Ears, which is part of Logitech, has been creating some pretty spectacular Bluetooth speakers in the last few years. The UE BOOM was a fan favorite, also one of our favorites. Since then they have come out with the Mini BOOM, MegaBoom and now the UE BOOM 2. Which is the same size as the original BOOM, but even better. Here we are looking at 15 hours of continuous playback on the UE BOOM 2, of course Ultimate Ears does note that your experience may differ. Bluetooth range sits at around 100-feet, a big improvement over the 35-feet that most other Bluetooth speakers have.
Perhaps my favorite feature of the UE BOOM 2 is the fact that it has NFC pairing. Just tap your smartphone on the speaker and it'll automatically pair to the device. Allowing you to quickly start streaming music over Bluetooth to the UE BOOM 2. It's also IPX7 which means it is water-proof and shock proof. You'll be able to take your UE BOOM 2 to the pool with you once the summer starts. UE offers the BOOM 2 in a variety of colors - although beware that Amazon has them at different prices right now. The "BrainFreeze Edition" looks pretty good, actually, as well as the Cherry Bomb.