When is a wireless speaker not a wireless speaker? When you can also plug your phone into the speaker to charge it up in a pinch. That's the hook with Braven's new Six Series speakers, anyway, which come in three different varieties that each pack a USB port that lets you either charge your smartphone or daisy chain multiple speakers together. Ranging in price from $150 to $190, the three different models all also boast similar features across the board, but differ in construction, with the top-end 625s offering a rugged housing (not to mention a built-in LED flashlight), while the 600 and 650 each sport an all-aluminum design -- battery life also varies a bit by model. If the speakers look a little familiar, it's b
