They"re like a fountain of youth for your iPod. These battery boosters come with silicone skins in a variety of colors. The battery provides a charge that practically doubles the life of your iPod; the silicone skins keep it looking like new; and the colors, well, they add some color. What"s more, it"s not necessary to remove the silicone skin to sync with iTunes, and you can still control the Click Wheel and Hold switch with ease. Available with AC adapter with USB connection.