A tiny Bluetooth speaker you can literally carry in your pocket sounds like a great concept, but going small -- and I mean really small -- usually means sacrificing sound quality, or more specifically bass performance.
The Bose SoundLink Micro is a pocket-sized Bluetooth speaker that is able to play louder and produce richer and louder sound than competing micro wireless speakers; It's fully waterproof, has a built-in microphone for speakerphone calls, plus an integrated strap for clipping the speaker onto a bag...
A little pricey and battery life is only average