Summary: The TravelSound i80 is a truly portable iPod nano speaker with a long battery life to suit. Nevertheless, its design and portability are let down by poor quality speakers that ruin the overall experience.
Conclusion: Performance for the TravelSound i80 is mixed. On the one hand, it gets shockingly loud for a speaker of this size. Also, the rated battery life of 15 hours is plenty adequate, and the fact that it charges the Nano while plugged in is nice. However, sound quality isn't very good. We noticed a background hiss, and music overall suffered from the hollow, tinny effect often heard in speakers this size.
Pros: Suffers from tinny sound, Lacks stereo separation, Will not work with any player other than the third-generation iPod Nano
Cons: Unique, supercompact design, Integrated iPod dock, Comes with a stand, travel pouch, and power adaptor