 We all know the heartbreak of dead batteries. Don't let it happen to you. TuneJuice Universal uses three readily-available AA batteries to charge your MP3 player or other USB-charging device. Just slide open TuneJuice Universal's battery compartment, pop the batteries in, and plug in your device's USB charge/sync cable. We've even included a fresh set of batteries to get you started.
A must-have for travel, camping or anywhere else you might face the bleak prospect of dead batteries.  • Uses 3 AA batteries (included)
• Output: 5 V @ 850 mA
• Works with mobile phones, MP3 players and other devices that charge via USB
• Adds up to 2.25 hours of talk time (on iPhone 3GS)
• Adds up to 2.25 hours of talk time (on iPhone 3GS)
Note: Will not work with iPad | 
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