AA Power Pack - Anytime Charge! Now you can talk longer, listen to more music, play more games, watch more videos without worrying about running out of battery life - if your phone or other device is running out of power just add 4 x AA batteries to the power pack, connect and keep going longer and longer. The AA Power Pack can add up to 8 hours (iPhone 4S) of additional talk time, 24 hours (iPhone 4S) of music time or 6 hours (iPhone 4S) of additional video play.
AA Convenience - No limits! The AA Power pack works with any AA battery, alkaline or rechargeable, providing the ultimate convenience in emergency power in your travel bag. Just add 4 x AA batteries to start using and charging your phone, headset or other devices.
Universal Power - Charge it all! Use the AA Power Pack to charge a wide range of devices such as iPhone, iPod, and micro-USB charged phones or wireless Bluetooth headsets. Just use the standard iPhone data cable (Not included) or the included USB to Micro-USB Cable to charge.