It’s the World’s Smallest MP3 Player! With a built-in Li-On Battery, that is! Not much is known about this Hsuan Mao MP3-6610, but then again, how much do we really need to know about a pendant flash player? It’s light, it has a rechargeable battery, and will likely not have much memory built-in. More details will come to light when it is officially unveiled at the 2004 Taipei International Electronics Show.