The pocket-sized, $59 Micro Wireless is truly surprising. How good can the audio from such a small Bluetooth speaker really be? While it can't rival larger speakers note for note, the "bigness" of the Micro's sound is jaw-dropping. The speaker's battery offers five hours of listening, and an integrated cable, which stores in a groove in the bottom of the speaker, lets you connect to another source—or even to a second (or third!) Micro Wireless in a daisy chain. It's available in black, green, blue, and red, and a non-Bluetooth version (the Micro II) is available for just $39.