"x-mini Speaker/Mini Subwoofer"3.5 starson by nightwise
Pros: Rechargeable Lithium-ion battery, up to 6 hours battery life (when fully charged), Ridiculously loud when in sub-woofer mode, Audio jack hook-up.
Cons: Not really pocket size, it can fit in your pocket but unfortunately it's a little bulging. The Organizations features on the X-mini is a little over-simplified. In need of a an equalizer.
Summary: The X-mini has a rich deep bass in the speaker. Incredible sound, loud and strong, this little speaker surprises everyone with how BIG it sounds. Just pop open the capsule and extend the speaker - this opens the resonance chamber, increasing the bass response even higher.