Product Description The new TuneJuice2 is a battery back-up for all dockable iPods that support USB charging. TuneJuice2 adds more playing time for music and video to the iPod. From the Manufacturer If you have ever had the battery in your iPod run out of juice at an inopportune moment, then you need the Griffin TuneJuice 2 Battery Backup for iPod and iPod mini. The Griffin TuneJuice 2 is ideal for extending the play time on your iPod when you are away from a convenient power source. Griffin's TuneJuice 2 works with any dockable iPod or iPod mini, and when your iPod battery runs low it will provide you with up to 14 hours of additional audio play, or two or more hours of video enjoyment. Powered by four (included) AAA batteries, the TuneJuice 2 is perfect for use on airplanes, and a lifesaver during road trips, ski trips, camping, or anytime you need some serious playtime and don't have a way to charge your iPod. What's more, you can use rechargeable AAA batteries to reduce waste and added expense. User's should note that this unit does not actually recharge your iPod's internal battery, and therefore can not be used on a completely discharged (to the point of shutdown) iPod. The Griffin TuneJuice 2 is compatible with the: iPod (5g) with Video, iPod nano (2g and 1g), iPod (4g) photo, iPod mini, iPod (4g), and iPod (3g), and is backed by a manufacturer's one-year warranty.What's in the Box Griffin TuneJuice 2 external power source, 4 x AAA batteries, user's guide and warranty information.