DESC: iAUDIO U2 is a slim type of product, consisted of three beautiful colors with freshness of Ocean Blue, passion of Ruby Red and luxuriousness of Platinum Black. This product provides up to 20-hour playback, whose weight is only 34g including lithium polymer charger, and provides express speed USB 2.0 download of up to 20Mbps maximum speed and provides fast transfer speed as fresh product design.