The uno is the simplest external iPhone/iPod battery pack ever. Designed by road warriors for road warriors, the uno is the only iPhone/iPod external battery pack available with an integrated recharge cable. No need to carry (and lose) yet another cable. The uno supplies extended power for up to 5.5 hrs of talk time, 24 hrs of music, and 8 hrs of video, and fits perfectly in your pocket, purse or briefcase